Modulation of antioxidative metabolism in plants for improvement of plant abiotic stress tolerance and identification of new biomarkers for application in remediation and monitoring of degraded biotopes

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info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/43010/RS//

Modulation of antioxidative metabolism in plants for improvement of plant abiotic stress tolerance and identification of new biomarkers for application in remediation and monitoring of degraded biotopes (en)
Модификације антиоксидативног метаболизма биљака са циљем повећања толеранције на абиотски стрес и идентификација нових биомаркера са применом у ремедијацији и мониторингу деградираних станишта (sr)
Modifikacije antioksidativnog metabolizma biljaka sa ciljem povećanja tolerancije na abiotski stres i identifikacija novih biomarkera sa primenom u remedijaciji i monitoringu degradiranih staništa (sr_RS)
Authors

Publications

Polarography as a technique of choice for the evaluation of total antioxidant activity: The case study of selected Coprinus Comatus extracts and quinic acid, their antidiabetic ingredient

Karaman, Maja; Tesanovic, Kristina; Gorjanovic, Stanislava; Pastor, Ferenc T.; Simonovic, Mladen; Glumac, Miodrag; Pejin, Boris

(2021)

TY  - JOUR
AU  - Karaman, Maja
AU  - Tesanovic, Kristina
AU  - Gorjanovic, Stanislava
AU  - Pastor, Ferenc T.
AU  - Simonovic, Mladen
AU  - Glumac, Miodrag
AU  - Pejin, Boris
PY  - 2021
UR  - http://www.ncbi.nlm.nih.gov/pubmed/31192702
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/4773
AB  - This study was focused on in vitro screening of the total antioxidant activity of the selected extracts of the mushroom Coprinus comatus and quinic acid, one of their antidiabetic ingredients, by an uncommon electrochemical assay. Indeed, direct current (DC) polarographic HydroxoPerhydroxo Mercury(II) Complex (HPMC) assay based on decrease of anodic limiting current originating from HPMC formation in alkaline solutions of hydrogen peroxide at potential of mercury dissolution, observed upon gradual addition of antioxidants, was applied herein for the estimation of the natural products' antioxidativity. Quinic acid was found to exhibit most promising antioxidant potential (4.0 ± 0.2%µL-1) being ≈ 2-fold more active than the screened C. comatus extract samples. Actually, such a finding puts some light on the antioxidativity of cyclic polyols, well understimated class of organic compounds, compared to aromatic (poly)phenolics. As a low cost, easy-to handle and accurate this polarographic assay may be thoroughly recommended for much broader use. [Formula: see text].
T2  - Natural Product Research
T1  - Polarography as a technique of choice for the evaluation of total antioxidant activity: The case study of selected Coprinus Comatus extracts and quinic acid, their antidiabetic ingredient
VL  - 35
IS  - 10
SP  - 1711
EP  - 1716
DO  - 10.1080/14786419.2019.1628753
ER  - 
@article{
author = "Karaman, Maja and Tesanovic, Kristina and Gorjanovic, Stanislava and Pastor, Ferenc T. and Simonovic, Mladen and Glumac, Miodrag and Pejin, Boris",
year = "2021",
abstract = "This study was focused on in vitro screening of the total antioxidant activity of the selected extracts of the mushroom Coprinus comatus and quinic acid, one of their antidiabetic ingredients, by an uncommon electrochemical assay. Indeed, direct current (DC) polarographic HydroxoPerhydroxo Mercury(II) Complex (HPMC) assay based on decrease of anodic limiting current originating from HPMC formation in alkaline solutions of hydrogen peroxide at potential of mercury dissolution, observed upon gradual addition of antioxidants, was applied herein for the estimation of the natural products' antioxidativity. Quinic acid was found to exhibit most promising antioxidant potential (4.0 ± 0.2%µL-1) being ≈ 2-fold more active than the screened C. comatus extract samples. Actually, such a finding puts some light on the antioxidativity of cyclic polyols, well understimated class of organic compounds, compared to aromatic (poly)phenolics. As a low cost, easy-to handle and accurate this polarographic assay may be thoroughly recommended for much broader use. [Formula: see text].",
journal = "Natural Product Research",
title = "Polarography as a technique of choice for the evaluation of total antioxidant activity: The case study of selected Coprinus Comatus extracts and quinic acid, their antidiabetic ingredient",
volume = "35",
number = "10",
pages = "1711-1716",
doi = "10.1080/14786419.2019.1628753"
}
Karaman, M., Tesanovic, K., Gorjanovic, S., Pastor, F. T., Simonovic, M., Glumac, M.,& Pejin, B.. (2021). Polarography as a technique of choice for the evaluation of total antioxidant activity: The case study of selected Coprinus Comatus extracts and quinic acid, their antidiabetic ingredient. in Natural Product Research, 35(10), 1711-1716.
https://doi.org/10.1080/14786419.2019.1628753
Karaman M, Tesanovic K, Gorjanovic S, Pastor FT, Simonovic M, Glumac M, Pejin B. Polarography as a technique of choice for the evaluation of total antioxidant activity: The case study of selected Coprinus Comatus extracts and quinic acid, their antidiabetic ingredient. in Natural Product Research. 2021;35(10):1711-1716.
doi:10.1080/14786419.2019.1628753 .
Karaman, Maja, Tesanovic, Kristina, Gorjanovic, Stanislava, Pastor, Ferenc T., Simonovic, Mladen, Glumac, Miodrag, Pejin, Boris, "Polarography as a technique of choice for the evaluation of total antioxidant activity: The case study of selected Coprinus Comatus extracts and quinic acid, their antidiabetic ingredient" in Natural Product Research, 35, no. 10 (2021):1711-1716,
https://doi.org/10.1080/14786419.2019.1628753 . .
15

Biliverdin-copper complex at physiological pH

Dimitrijević, Milena S.; Bogdanović Pristov, Jelena; Žižić, Milan; Stanković, Dalibor; Bajuk-Bogdanović, Danica; Stanić, Marina; Spasić, Snežana; Hagen, Wilfred; Spasojević, Ivan

(2019)

TY  - JOUR
AU  - Dimitrijević, Milena S.
AU  - Bogdanović Pristov, Jelena
AU  - Žižić, Milan
AU  - Stanković, Dalibor
AU  - Bajuk-Bogdanović, Danica
AU  - Stanić, Marina
AU  - Spasić, Snežana
AU  - Hagen, Wilfred
AU  - Spasojević, Ivan
PY  - 2019
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/3066
AB  - Biliverdin (BV), a product of heme catabolism, is known to interact with transition metals, but the details of such interactions under physiological conditions are scarce. Herein, we examined coordinate/redox interactions of BV with Cu2+ in phosphate buffer at pH 7.4, using spectrophotometry, HESI-MS, Raman spectroscopy, 1 H NMR, EPR, fluorimetry, and electrochemical methods. BV formed a stable coordination complex with copper in 1 : 1 stoichiometry. The structure of BV was more planar and energetically stable in the complex. The complex showed strong paramagnetic effects that were attributed to an unpaired delocalized e−. The delocalized electron may come from BV or Cu2+, so the complex is formally composed either of BV radical cation and Cu1+ or of BV radical anion and Cu3+. The complex underwent oxidation only in the presence of both O2 and an excess of Cu2+, or a strong oxidizing agent, and it was resistant to reducing agents. The biological effects of the stable BV metallocomplex containing a delocalized unpaired electron should be further examined, and may provide an answer to the long-standing question of high energy investment in the catabolism of BV, which represents a relatively harmless molecule per se.
T2  - Dalton Transactions
T1  - Biliverdin-copper complex at physiological pH
VL  - 48
IS  - 18
SP  - 6061
EP  - 6070
DO  - 10.1039/c8dt04724c
ER  - 
@article{
author = "Dimitrijević, Milena S. and Bogdanović Pristov, Jelena and Žižić, Milan and Stanković, Dalibor and Bajuk-Bogdanović, Danica and Stanić, Marina and Spasić, Snežana and Hagen, Wilfred and Spasojević, Ivan",
year = "2019",
abstract = "Biliverdin (BV), a product of heme catabolism, is known to interact with transition metals, but the details of such interactions under physiological conditions are scarce. Herein, we examined coordinate/redox interactions of BV with Cu2+ in phosphate buffer at pH 7.4, using spectrophotometry, HESI-MS, Raman spectroscopy, 1 H NMR, EPR, fluorimetry, and electrochemical methods. BV formed a stable coordination complex with copper in 1 : 1 stoichiometry. The structure of BV was more planar and energetically stable in the complex. The complex showed strong paramagnetic effects that were attributed to an unpaired delocalized e−. The delocalized electron may come from BV or Cu2+, so the complex is formally composed either of BV radical cation and Cu1+ or of BV radical anion and Cu3+. The complex underwent oxidation only in the presence of both O2 and an excess of Cu2+, or a strong oxidizing agent, and it was resistant to reducing agents. The biological effects of the stable BV metallocomplex containing a delocalized unpaired electron should be further examined, and may provide an answer to the long-standing question of high energy investment in the catabolism of BV, which represents a relatively harmless molecule per se.",
journal = "Dalton Transactions",
title = "Biliverdin-copper complex at physiological pH",
volume = "48",
number = "18",
pages = "6061-6070",
doi = "10.1039/c8dt04724c"
}
Dimitrijević, M. S., Bogdanović Pristov, J., Žižić, M., Stanković, D., Bajuk-Bogdanović, D., Stanić, M., Spasić, S., Hagen, W.,& Spasojević, I.. (2019). Biliverdin-copper complex at physiological pH. in Dalton Transactions, 48(18), 6061-6070.
https://doi.org/10.1039/c8dt04724c
Dimitrijević MS, Bogdanović Pristov J, Žižić M, Stanković D, Bajuk-Bogdanović D, Stanić M, Spasić S, Hagen W, Spasojević I. Biliverdin-copper complex at physiological pH. in Dalton Transactions. 2019;48(18):6061-6070.
doi:10.1039/c8dt04724c .
Dimitrijević, Milena S., Bogdanović Pristov, Jelena, Žižić, Milan, Stanković, Dalibor, Bajuk-Bogdanović, Danica, Stanić, Marina, Spasić, Snežana, Hagen, Wilfred, Spasojević, Ivan, "Biliverdin-copper complex at physiological pH" in Dalton Transactions, 48, no. 18 (2019):6061-6070,
https://doi.org/10.1039/c8dt04724c . .
7
6
6

Biliverdin-copper complex at physiological pH

Dimitrijević, Milena S.; Bogdanović Pristov, Jelena; Žižić, Milan; Stanković, Dalibor; Bajuk-Bogdanović, Danica; Stanić, Marina; Spasić, Snežana; Hagen, Wilfred; Spasojević, Ivan

(2019)

TY  - JOUR
AU  - Dimitrijević, Milena S.
AU  - Bogdanović Pristov, Jelena
AU  - Žižić, Milan
AU  - Stanković, Dalibor
AU  - Bajuk-Bogdanović, Danica
AU  - Stanić, Marina
AU  - Spasić, Snežana
AU  - Hagen, Wilfred
AU  - Spasojević, Ivan
PY  - 2019
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/3068
AB  - Biliverdin (BV), a product of heme catabolism, is known to interact with transition metals, but the details of such interactions under physiological conditions are scarce. Herein, we examined coordinate/redox interactions of BV with Cu2+ in phosphate buffer at pH 7.4, using spectrophotometry, HESI-MS, Raman spectroscopy, 1 H NMR, EPR, fluorimetry, and electrochemical methods. BV formed a stable coordination complex with copper in 1 : 1 stoichiometry. The structure of BV was more planar and energetically stable in the complex. The complex showed strong paramagnetic effects that were attributed to an unpaired delocalized e−. The delocalized electron may come from BV or Cu2+, so the complex is formally composed either of BV radical cation and Cu1+ or of BV radical anion and Cu3+. The complex underwent oxidation only in the presence of both O2 and an excess of Cu2+, or a strong oxidizing agent, and it was resistant to reducing agents. The biological effects of the stable BV metallocomplex containing a delocalized unpaired electron should be further examined, and may provide an answer to the long-standing question of high energy investment in the catabolism of BV, which represents a relatively harmless molecule per se.
T2  - Dalton Transactions
T1  - Biliverdin-copper complex at physiological pH
VL  - 48
IS  - 18
SP  - 6061
EP  - 6070
DO  - 10.1039/c8dt04724c
ER  - 
@article{
author = "Dimitrijević, Milena S. and Bogdanović Pristov, Jelena and Žižić, Milan and Stanković, Dalibor and Bajuk-Bogdanović, Danica and Stanić, Marina and Spasić, Snežana and Hagen, Wilfred and Spasojević, Ivan",
year = "2019",
abstract = "Biliverdin (BV), a product of heme catabolism, is known to interact with transition metals, but the details of such interactions under physiological conditions are scarce. Herein, we examined coordinate/redox interactions of BV with Cu2+ in phosphate buffer at pH 7.4, using spectrophotometry, HESI-MS, Raman spectroscopy, 1 H NMR, EPR, fluorimetry, and electrochemical methods. BV formed a stable coordination complex with copper in 1 : 1 stoichiometry. The structure of BV was more planar and energetically stable in the complex. The complex showed strong paramagnetic effects that were attributed to an unpaired delocalized e−. The delocalized electron may come from BV or Cu2+, so the complex is formally composed either of BV radical cation and Cu1+ or of BV radical anion and Cu3+. The complex underwent oxidation only in the presence of both O2 and an excess of Cu2+, or a strong oxidizing agent, and it was resistant to reducing agents. The biological effects of the stable BV metallocomplex containing a delocalized unpaired electron should be further examined, and may provide an answer to the long-standing question of high energy investment in the catabolism of BV, which represents a relatively harmless molecule per se.",
journal = "Dalton Transactions",
title = "Biliverdin-copper complex at physiological pH",
volume = "48",
number = "18",
pages = "6061-6070",
doi = "10.1039/c8dt04724c"
}
Dimitrijević, M. S., Bogdanović Pristov, J., Žižić, M., Stanković, D., Bajuk-Bogdanović, D., Stanić, M., Spasić, S., Hagen, W.,& Spasojević, I.. (2019). Biliverdin-copper complex at physiological pH. in Dalton Transactions, 48(18), 6061-6070.
https://doi.org/10.1039/c8dt04724c
Dimitrijević MS, Bogdanović Pristov J, Žižić M, Stanković D, Bajuk-Bogdanović D, Stanić M, Spasić S, Hagen W, Spasojević I. Biliverdin-copper complex at physiological pH. in Dalton Transactions. 2019;48(18):6061-6070.
doi:10.1039/c8dt04724c .
Dimitrijević, Milena S., Bogdanović Pristov, Jelena, Žižić, Milan, Stanković, Dalibor, Bajuk-Bogdanović, Danica, Stanić, Marina, Spasić, Snežana, Hagen, Wilfred, Spasojević, Ivan, "Biliverdin-copper complex at physiological pH" in Dalton Transactions, 48, no. 18 (2019):6061-6070,
https://doi.org/10.1039/c8dt04724c . .
7
6
6

Supplementary data for article: Dimitrijević, M. S.; Bogdanović Pristov, J.; Žižić, M.; Stanković, D. M.; Bajuk-Bogdanović, D.; Stanić, M.; Spasić, S.; Hagen, W.; Spasojević, I. Biliverdin-Copper Complex at Physiological PH. Dalton Transactions 2019, 48 (18), 6061–6070. https://doi.org/10.1039/c8dt04724c

Dimitrijević, Milena S.; Bogdanović Pristov, Jelena; Žižić, Milan; Stanković, Dalibor; Bajuk-Bogdanović, Danica; Stanić, Marina; Spasić, Snežana; Hagen, Wilfred; Spasojević, Ivan

(2019)

TY  - DATA
AU  - Dimitrijević, Milena S.
AU  - Bogdanović Pristov, Jelena
AU  - Žižić, Milan
AU  - Stanković, Dalibor
AU  - Bajuk-Bogdanović, Danica
AU  - Stanić, Marina
AU  - Spasić, Snežana
AU  - Hagen, Wilfred
AU  - Spasojević, Ivan
PY  - 2019
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/3069
T2  - Dalton Transactions
T1  - Supplementary data for article:
Dimitrijević, M. S.; Bogdanović Pristov, J.; Žižić, M.; Stanković, D. M.; Bajuk-Bogdanović, D.; Stanić, M.; Spasić, S.; Hagen, W.; Spasojević, I. Biliverdin-Copper Complex at Physiological PH. Dalton Transactions 2019, 48 (18), 6061–6070. https://doi.org/10.1039/c8dt04724c
VL  - 48
IS  - 18
SP  - 6061
EP  - 6070
ER  - 
@misc{
author = "Dimitrijević, Milena S. and Bogdanović Pristov, Jelena and Žižić, Milan and Stanković, Dalibor and Bajuk-Bogdanović, Danica and Stanić, Marina and Spasić, Snežana and Hagen, Wilfred and Spasojević, Ivan",
year = "2019",
journal = "Dalton Transactions",
title = "Supplementary data for article:
Dimitrijević, M. S.; Bogdanović Pristov, J.; Žižić, M.; Stanković, D. M.; Bajuk-Bogdanović, D.; Stanić, M.; Spasić, S.; Hagen, W.; Spasojević, I. Biliverdin-Copper Complex at Physiological PH. Dalton Transactions 2019, 48 (18), 6061–6070. https://doi.org/10.1039/c8dt04724c",
volume = "48",
number = "18",
pages = "6061-6070"
}
Dimitrijević, M. S., Bogdanović Pristov, J., Žižić, M., Stanković, D., Bajuk-Bogdanović, D., Stanić, M., Spasić, S., Hagen, W.,& Spasojević, I.. (2019). Supplementary data for article:
Dimitrijević, M. S.; Bogdanović Pristov, J.; Žižić, M.; Stanković, D. M.; Bajuk-Bogdanović, D.; Stanić, M.; Spasić, S.; Hagen, W.; Spasojević, I. Biliverdin-Copper Complex at Physiological PH. Dalton Transactions 2019, 48 (18), 6061–6070. https://doi.org/10.1039/c8dt04724c. in Dalton Transactions, 48(18), 6061-6070.
Dimitrijević MS, Bogdanović Pristov J, Žižić M, Stanković D, Bajuk-Bogdanović D, Stanić M, Spasić S, Hagen W, Spasojević I. Supplementary data for article:
Dimitrijević, M. S.; Bogdanović Pristov, J.; Žižić, M.; Stanković, D. M.; Bajuk-Bogdanović, D.; Stanić, M.; Spasić, S.; Hagen, W.; Spasojević, I. Biliverdin-Copper Complex at Physiological PH. Dalton Transactions 2019, 48 (18), 6061–6070. https://doi.org/10.1039/c8dt04724c. in Dalton Transactions. 2019;48(18):6061-6070..
Dimitrijević, Milena S., Bogdanović Pristov, Jelena, Žižić, Milan, Stanković, Dalibor, Bajuk-Bogdanović, Danica, Stanić, Marina, Spasić, Snežana, Hagen, Wilfred, Spasojević, Ivan, "Supplementary data for article:
Dimitrijević, M. S.; Bogdanović Pristov, J.; Žižić, M.; Stanković, D. M.; Bajuk-Bogdanović, D.; Stanić, M.; Spasić, S.; Hagen, W.; Spasojević, I. Biliverdin-Copper Complex at Physiological PH. Dalton Transactions 2019, 48 (18), 6061–6070. https://doi.org/10.1039/c8dt04724c" in Dalton Transactions, 48, no. 18 (2019):6061-6070.

Resource allocation in response to herbivory and gall formation in Linaria vulgaris

Zorić, A.S.; Morina, F.; Toševski, Ivo; Tosti, Tomislav; Jović, Jelena; Krstić, Oliver; Veljović-Jovanović, Sonja

(Elsevier Masson SAS, 2019)

TY  - JOUR
AU  - Zorić, A.S.
AU  - Morina, F.
AU  - Toševski, Ivo
AU  - Tosti, Tomislav
AU  - Jović, Jelena
AU  - Krstić, Oliver
AU  - Veljović-Jovanović, Sonja
PY  - 2019
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2804
AB  - Trehalose and its precursor, trehalose 6-phosphate (T6P), are essential regulators of plant response to abiotic and biotic stress. Here we used the specific host-insect interaction between Linaria vulgaris (Plantaginaceae) and stem-galling weevil, Rhinusa pilosa (Mecinini, Curculionidae) with the aim to distinguish carbohydrate allocation patterns in response to herbivory, gall formation (G1, 24 h after oviposition), and gall development (G2, 7 days after oviposition) under controlled conditions. The hypothesis is that herbivory and galling induce distinct responses in both leaves and stems, and that shifts in carbon allocations are regulated by signaling sugars. Systemic response to herbivory was accumulation of T6P and maltose. The main feature of G1 in the stems was accumulation of trehalose, accompanied by increased T6P, turanose and glucose content, oppositely to the leaves. In G2, galls had 3-folds higher weight than controls, with further accumulation of fructose, glucose, turanose, and total water-insoluble carbohydrates (TIC), while the sucrose/hexose ratio decreased. Analysis of fast chlorophyll fluorescence kinetic (OJIP) transients in G2 showed a slight decrease in quantum yield of electron transport flux from QA to QB, and towards photosystem I acceptor side, correlated with the decreased content of photosynthetic pigments and hexoses accumulation. Redistribution of photosynthates, and accumulation of T6P were induced in response to herbivory, indicating its signaling role. The results support the hypothesis that R. pilosa can induce plant reprogramming towards the accumulation of beneficial carbohydrates in developing gall by mechanisms which include both T6P and trehalose.
PB  - Elsevier Masson SAS
T2  - Plant Physiology and Biochemistry
T1  - Resource allocation in response to herbivory and gall formation in Linaria vulgaris
VL  - 135
SP  - 224
EP  - 232
DO  - 10.1016/j.plaphy.2018.11.032
ER  - 
@article{
author = "Zorić, A.S. and Morina, F. and Toševski, Ivo and Tosti, Tomislav and Jović, Jelena and Krstić, Oliver and Veljović-Jovanović, Sonja",
year = "2019",
abstract = "Trehalose and its precursor, trehalose 6-phosphate (T6P), are essential regulators of plant response to abiotic and biotic stress. Here we used the specific host-insect interaction between Linaria vulgaris (Plantaginaceae) and stem-galling weevil, Rhinusa pilosa (Mecinini, Curculionidae) with the aim to distinguish carbohydrate allocation patterns in response to herbivory, gall formation (G1, 24 h after oviposition), and gall development (G2, 7 days after oviposition) under controlled conditions. The hypothesis is that herbivory and galling induce distinct responses in both leaves and stems, and that shifts in carbon allocations are regulated by signaling sugars. Systemic response to herbivory was accumulation of T6P and maltose. The main feature of G1 in the stems was accumulation of trehalose, accompanied by increased T6P, turanose and glucose content, oppositely to the leaves. In G2, galls had 3-folds higher weight than controls, with further accumulation of fructose, glucose, turanose, and total water-insoluble carbohydrates (TIC), while the sucrose/hexose ratio decreased. Analysis of fast chlorophyll fluorescence kinetic (OJIP) transients in G2 showed a slight decrease in quantum yield of electron transport flux from QA to QB, and towards photosystem I acceptor side, correlated with the decreased content of photosynthetic pigments and hexoses accumulation. Redistribution of photosynthates, and accumulation of T6P were induced in response to herbivory, indicating its signaling role. The results support the hypothesis that R. pilosa can induce plant reprogramming towards the accumulation of beneficial carbohydrates in developing gall by mechanisms which include both T6P and trehalose.",
publisher = "Elsevier Masson SAS",
journal = "Plant Physiology and Biochemistry",
title = "Resource allocation in response to herbivory and gall formation in Linaria vulgaris",
volume = "135",
pages = "224-232",
doi = "10.1016/j.plaphy.2018.11.032"
}
Zorić, A.S., Morina, F., Toševski, I., Tosti, T., Jović, J., Krstić, O.,& Veljović-Jovanović, S.. (2019). Resource allocation in response to herbivory and gall formation in Linaria vulgaris. in Plant Physiology and Biochemistry
Elsevier Masson SAS., 135, 224-232.
https://doi.org/10.1016/j.plaphy.2018.11.032
Zorić A, Morina F, Toševski I, Tosti T, Jović J, Krstić O, Veljović-Jovanović S. Resource allocation in response to herbivory and gall formation in Linaria vulgaris. in Plant Physiology and Biochemistry. 2019;135:224-232.
doi:10.1016/j.plaphy.2018.11.032 .
Zorić, A.S., Morina, F., Toševski, Ivo, Tosti, Tomislav, Jović, Jelena, Krstić, Oliver, Veljović-Jovanović, Sonja, "Resource allocation in response to herbivory and gall formation in Linaria vulgaris" in Plant Physiology and Biochemistry, 135 (2019):224-232,
https://doi.org/10.1016/j.plaphy.2018.11.032 . .
1
4
3
4

Study of heavy metals biosorption on native and alkali-treated apricot shells and its application in wastewater treatment

Šoštarić, Tatjana D.; Petrović, Marija S.; Pastor, Ferenc; Lončarević, Davor; Petrović, Jelena T.; Milojković, Jelena V.; Stojanović, Mirjana D.

(Elsevier Science Bv, Amsterdam, 2018)

TY  - JOUR
AU  - Šoštarić, Tatjana D.
AU  - Petrović, Marija S.
AU  - Pastor, Ferenc
AU  - Lončarević, Davor
AU  - Petrović, Jelena T.
AU  - Milojković, Jelena V.
AU  - Stojanović, Mirjana D.
PY  - 2018
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2152
AB  - Locally available apricot (Prunus armeniaca L.) shells classified as a waste product from fruit processing, were alkali activated in order to develop an efficient heavy metal ions sorbent for water purification. To examine the changes occurred after alkali treatment, raw (SH) and modified apricot shells (SHM) were thoroughly characterized in terms of their chemical composition and surface properties. Chemical analysis revealed that alkaline treatment causes the disintegration of hemicellulose (its content decreased from 19.2 to 3.5%), which was in accordance with FTIR results. SEM micrographs and the mercury intrusion porosimetry revealed a larger surface area and porosity of SHM. Bohem's acid-base titration method indicated that the most of the SHM surface carboxylic groups were in sodium salt form and together with the pH of points of zero charge showed increase of surface alkalinity after modification. Treatment with NaOH enhanced the adsorption capacity by 154, 61 and 90% for Cu2+, Zn2+ and Pb2+, respectively. The amount of cations released from SHM was almost equal to the amount of adsorbed metal ions, suggesting ion exchange mechanism. The pseudo-second order kinetic indicated that the heavy metals cations were bound predominantly by complexation. In order to establish the effectiveness of the biosorbent in real wastewater sample, SHM was employed for cleaning-up of drain water emanating from atomic adsorption spectrophotometer. The SHM showed high removal efficiency towards multiple metal ions. The amounts of Fe, Pb, Cu and Cr ions were reduced by 97, 87, 81 and 80%, respectively, while Ni and Zn amounts were reduced for 33 and 14%. Used biosorbent SHM can be successfully regenerated with HCl (desorption  gt  95%) and after regeneration biosorbent can be reused or it can be safely disposed. (C) 2018 Elsevier B.V. All rights reserved.
PB  - Elsevier Science Bv, Amsterdam
T2  - Journal of Molecular Liquids
T1  - Study of heavy metals biosorption on native and alkali-treated apricot shells and its application in wastewater treatment
VL  - 259
SP  - 340
EP  - 349
DO  - 10.1016/j.molliq.2018.03.055
UR  - Kon_3483
ER  - 
@article{
author = "Šoštarić, Tatjana D. and Petrović, Marija S. and Pastor, Ferenc and Lončarević, Davor and Petrović, Jelena T. and Milojković, Jelena V. and Stojanović, Mirjana D.",
year = "2018",
abstract = "Locally available apricot (Prunus armeniaca L.) shells classified as a waste product from fruit processing, were alkali activated in order to develop an efficient heavy metal ions sorbent for water purification. To examine the changes occurred after alkali treatment, raw (SH) and modified apricot shells (SHM) were thoroughly characterized in terms of their chemical composition and surface properties. Chemical analysis revealed that alkaline treatment causes the disintegration of hemicellulose (its content decreased from 19.2 to 3.5%), which was in accordance with FTIR results. SEM micrographs and the mercury intrusion porosimetry revealed a larger surface area and porosity of SHM. Bohem's acid-base titration method indicated that the most of the SHM surface carboxylic groups were in sodium salt form and together with the pH of points of zero charge showed increase of surface alkalinity after modification. Treatment with NaOH enhanced the adsorption capacity by 154, 61 and 90% for Cu2+, Zn2+ and Pb2+, respectively. The amount of cations released from SHM was almost equal to the amount of adsorbed metal ions, suggesting ion exchange mechanism. The pseudo-second order kinetic indicated that the heavy metals cations were bound predominantly by complexation. In order to establish the effectiveness of the biosorbent in real wastewater sample, SHM was employed for cleaning-up of drain water emanating from atomic adsorption spectrophotometer. The SHM showed high removal efficiency towards multiple metal ions. The amounts of Fe, Pb, Cu and Cr ions were reduced by 97, 87, 81 and 80%, respectively, while Ni and Zn amounts were reduced for 33 and 14%. Used biosorbent SHM can be successfully regenerated with HCl (desorption  gt  95%) and after regeneration biosorbent can be reused or it can be safely disposed. (C) 2018 Elsevier B.V. All rights reserved.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Journal of Molecular Liquids",
title = "Study of heavy metals biosorption on native and alkali-treated apricot shells and its application in wastewater treatment",
volume = "259",
pages = "340-349",
doi = "10.1016/j.molliq.2018.03.055",
url = "Kon_3483"
}
Šoštarić, T. D., Petrović, M. S., Pastor, F., Lončarević, D., Petrović, J. T., Milojković, J. V.,& Stojanović, M. D.. (2018). Study of heavy metals biosorption on native and alkali-treated apricot shells and its application in wastewater treatment. in Journal of Molecular Liquids
Elsevier Science Bv, Amsterdam., 259, 340-349.
https://doi.org/10.1016/j.molliq.2018.03.055
Kon_3483
Šoštarić TD, Petrović MS, Pastor F, Lončarević D, Petrović JT, Milojković JV, Stojanović MD. Study of heavy metals biosorption on native and alkali-treated apricot shells and its application in wastewater treatment. in Journal of Molecular Liquids. 2018;259:340-349.
doi:10.1016/j.molliq.2018.03.055
Kon_3483 .
Šoštarić, Tatjana D., Petrović, Marija S., Pastor, Ferenc, Lončarević, Davor, Petrović, Jelena T., Milojković, Jelena V., Stojanović, Mirjana D., "Study of heavy metals biosorption on native and alkali-treated apricot shells and its application in wastewater treatment" in Journal of Molecular Liquids, 259 (2018):340-349,
https://doi.org/10.1016/j.molliq.2018.03.055 .,
Kon_3483 .
45
38
40

Supplementary material for the article: Šoštarić, T. D.; Petrović, M. S.; Pastor, F. T.; Lončarević, D. R.; Petrović, J. T.; Milojković, J. V.; Stojanović, M. D. Study of Heavy Metals Biosorption on Native and Alkali-Treated Apricot Shells and Its Application in Wastewater Treatment. Journal of Molecular Liquids 2018, 259, 340–349. https://doi.org/10.1016/j.molliq.2018.03.055

Šoštarić, Tatjana D.; Petrović, Marija S.; Pastor, Ferenc; Lončarević, Davor R.; Petrović, Jelena T.; Milojković, Jelena V.; Stojanović, Mirjana D.

(Elsevier Science Bv, Amsterdam, 2018)

TY  - DATA
AU  - Šoštarić, Tatjana D.
AU  - Petrović, Marija S.
AU  - Pastor, Ferenc
AU  - Lončarević, Davor R.
AU  - Petrović, Jelena T.
AU  - Milojković, Jelena V.
AU  - Stojanović, Mirjana D.
PY  - 2018
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2969
PB  - Elsevier Science Bv, Amsterdam
T2  - Journal of Molecular Liquids
T1  - Supplementary material for the article: Šoštarić, T. D.; Petrović, M. S.; Pastor, F. T.; Lončarević, D. R.; Petrović, J. T.; Milojković,  J. V.; Stojanović, M. D. Study of Heavy Metals Biosorption on Native and Alkali-Treated  Apricot Shells and Its Application in Wastewater Treatment. Journal of Molecular Liquids  2018, 259, 340–349. https://doi.org/10.1016/j.molliq.2018.03.055
UR  - Kon_3483
ER  - 
@misc{
author = "Šoštarić, Tatjana D. and Petrović, Marija S. and Pastor, Ferenc and Lončarević, Davor R. and Petrović, Jelena T. and Milojković, Jelena V. and Stojanović, Mirjana D.",
year = "2018",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Journal of Molecular Liquids",
title = "Supplementary material for the article: Šoštarić, T. D.; Petrović, M. S.; Pastor, F. T.; Lončarević, D. R.; Petrović, J. T.; Milojković,  J. V.; Stojanović, M. D. Study of Heavy Metals Biosorption on Native and Alkali-Treated  Apricot Shells and Its Application in Wastewater Treatment. Journal of Molecular Liquids  2018, 259, 340–349. https://doi.org/10.1016/j.molliq.2018.03.055",
url = "Kon_3483"
}
Šoštarić, T. D., Petrović, M. S., Pastor, F., Lončarević, D. R., Petrović, J. T., Milojković, J. V.,& Stojanović, M. D.. (2018). Supplementary material for the article: Šoštarić, T. D.; Petrović, M. S.; Pastor, F. T.; Lončarević, D. R.; Petrović, J. T.; Milojković,  J. V.; Stojanović, M. D. Study of Heavy Metals Biosorption on Native and Alkali-Treated  Apricot Shells and Its Application in Wastewater Treatment. Journal of Molecular Liquids  2018, 259, 340–349. https://doi.org/10.1016/j.molliq.2018.03.055. in Journal of Molecular Liquids
Elsevier Science Bv, Amsterdam..
Kon_3483
Šoštarić TD, Petrović MS, Pastor F, Lončarević DR, Petrović JT, Milojković JV, Stojanović MD. Supplementary material for the article: Šoštarić, T. D.; Petrović, M. S.; Pastor, F. T.; Lončarević, D. R.; Petrović, J. T.; Milojković,  J. V.; Stojanović, M. D. Study of Heavy Metals Biosorption on Native and Alkali-Treated  Apricot Shells and Its Application in Wastewater Treatment. Journal of Molecular Liquids  2018, 259, 340–349. https://doi.org/10.1016/j.molliq.2018.03.055. in Journal of Molecular Liquids. 2018;.
Kon_3483 .
Šoštarić, Tatjana D., Petrović, Marija S., Pastor, Ferenc, Lončarević, Davor R., Petrović, Jelena T., Milojković, Jelena V., Stojanović, Mirjana D., "Supplementary material for the article: Šoštarić, T. D.; Petrović, M. S.; Pastor, F. T.; Lončarević, D. R.; Petrović, J. T.; Milojković,  J. V.; Stojanović, M. D. Study of Heavy Metals Biosorption on Native and Alkali-Treated  Apricot Shells and Its Application in Wastewater Treatment. Journal of Molecular Liquids  2018, 259, 340–349. https://doi.org/10.1016/j.molliq.2018.03.055" in Journal of Molecular Liquids (2018),
Kon_3483 .

Study of heavy metals biosorption on native and alkali-treated apricot shells and its application in wastewater treatment

Šoštarić, Tatjana D.; Petrović, Marija S.; Pastor, Ferenc; Lončarević, Davor; Petrović, Jelena T.; Milojković, Jelena V.; Stojanović, Mirjana D.

(Elsevier Science Bv, Amsterdam, 2018)

TY  - JOUR
AU  - Šoštarić, Tatjana D.
AU  - Petrović, Marija S.
AU  - Pastor, Ferenc
AU  - Lončarević, Davor
AU  - Petrović, Jelena T.
AU  - Milojković, Jelena V.
AU  - Stojanović, Mirjana D.
PY  - 2018
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2970
AB  - Locally available apricot (Prunus armeniaca L.) shells classified as a waste product from fruit processing, were alkali activated in order to develop an efficient heavy metal ions sorbent for water purification. To examine the changes occurred after alkali treatment, raw (SH) and modified apricot shells (SHM) were thoroughly characterized in terms of their chemical composition and surface properties. Chemical analysis revealed that alkaline treatment causes the disintegration of hemicellulose (its content decreased from 19.2 to 3.5%), which was in accordance with FTIR results. SEM micrographs and the mercury intrusion porosimetry revealed a larger surface area and porosity of SHM. Bohem's acid-base titration method indicated that the most of the SHM surface carboxylic groups were in sodium salt form and together with the pH of points of zero charge showed increase of surface alkalinity after modification. Treatment with NaOH enhanced the adsorption capacity by 154, 61 and 90% for Cu2+, Zn2+ and Pb2+, respectively. The amount of cations released from SHM was almost equal to the amount of adsorbed metal ions, suggesting ion exchange mechanism. The pseudo-second order kinetic indicated that the heavy metals cations were bound predominantly by complexation. In order to establish the effectiveness of the biosorbent in real wastewater sample, SHM was employed for cleaning-up of drain water emanating from atomic adsorption spectrophotometer. The SHM showed high removal efficiency towards multiple metal ions. The amounts of Fe, Pb, Cu and Cr ions were reduced by 97, 87, 81 and 80%, respectively, while Ni and Zn amounts were reduced for 33 and 14%. Used biosorbent SHM can be successfully regenerated with HCl (desorption  gt  95%) and after regeneration biosorbent can be reused or it can be safely disposed. (C) 2018 Elsevier B.V. All rights reserved.
PB  - Elsevier Science Bv, Amsterdam
T2  - Journal of Molecular Liquids
T1  - Study of heavy metals biosorption on native and alkali-treated apricot shells and its application in wastewater treatment
VL  - 259
SP  - 340
EP  - 349
DO  - 10.1016/j.molliq.2018.03.055
UR  - Kon_3483
ER  - 
@article{
author = "Šoštarić, Tatjana D. and Petrović, Marija S. and Pastor, Ferenc and Lončarević, Davor and Petrović, Jelena T. and Milojković, Jelena V. and Stojanović, Mirjana D.",
year = "2018",
abstract = "Locally available apricot (Prunus armeniaca L.) shells classified as a waste product from fruit processing, were alkali activated in order to develop an efficient heavy metal ions sorbent for water purification. To examine the changes occurred after alkali treatment, raw (SH) and modified apricot shells (SHM) were thoroughly characterized in terms of their chemical composition and surface properties. Chemical analysis revealed that alkaline treatment causes the disintegration of hemicellulose (its content decreased from 19.2 to 3.5%), which was in accordance with FTIR results. SEM micrographs and the mercury intrusion porosimetry revealed a larger surface area and porosity of SHM. Bohem's acid-base titration method indicated that the most of the SHM surface carboxylic groups were in sodium salt form and together with the pH of points of zero charge showed increase of surface alkalinity after modification. Treatment with NaOH enhanced the adsorption capacity by 154, 61 and 90% for Cu2+, Zn2+ and Pb2+, respectively. The amount of cations released from SHM was almost equal to the amount of adsorbed metal ions, suggesting ion exchange mechanism. The pseudo-second order kinetic indicated that the heavy metals cations were bound predominantly by complexation. In order to establish the effectiveness of the biosorbent in real wastewater sample, SHM was employed for cleaning-up of drain water emanating from atomic adsorption spectrophotometer. The SHM showed high removal efficiency towards multiple metal ions. The amounts of Fe, Pb, Cu and Cr ions were reduced by 97, 87, 81 and 80%, respectively, while Ni and Zn amounts were reduced for 33 and 14%. Used biosorbent SHM can be successfully regenerated with HCl (desorption  gt  95%) and after regeneration biosorbent can be reused or it can be safely disposed. (C) 2018 Elsevier B.V. All rights reserved.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Journal of Molecular Liquids",
title = "Study of heavy metals biosorption on native and alkali-treated apricot shells and its application in wastewater treatment",
volume = "259",
pages = "340-349",
doi = "10.1016/j.molliq.2018.03.055",
url = "Kon_3483"
}
Šoštarić, T. D., Petrović, M. S., Pastor, F., Lončarević, D., Petrović, J. T., Milojković, J. V.,& Stojanović, M. D.. (2018). Study of heavy metals biosorption on native and alkali-treated apricot shells and its application in wastewater treatment. in Journal of Molecular Liquids
Elsevier Science Bv, Amsterdam., 259, 340-349.
https://doi.org/10.1016/j.molliq.2018.03.055
Kon_3483
Šoštarić TD, Petrović MS, Pastor F, Lončarević D, Petrović JT, Milojković JV, Stojanović MD. Study of heavy metals biosorption on native and alkali-treated apricot shells and its application in wastewater treatment. in Journal of Molecular Liquids. 2018;259:340-349.
doi:10.1016/j.molliq.2018.03.055
Kon_3483 .
Šoštarić, Tatjana D., Petrović, Marija S., Pastor, Ferenc, Lončarević, Davor, Petrović, Jelena T., Milojković, Jelena V., Stojanović, Mirjana D., "Study of heavy metals biosorption on native and alkali-treated apricot shells and its application in wastewater treatment" in Journal of Molecular Liquids, 259 (2018):340-349,
https://doi.org/10.1016/j.molliq.2018.03.055 .,
Kon_3483 .
44
38
41

Redoks svojstva slobodnih aminokiselina i indola kao model-jedinjenja u Fentonovom sistemu

Milić Komić, Sonja

(Универзитет у Београду, Хемијски факултет, 2018)

TY  - THES
AU  - Milić Komić, Sonja
PY  - 2018
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=6270
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:18902/bdef:Content/download
UR  - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=50773775
UR  - http://nardus.mpn.gov.rs/123456789/10315
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2795
AB  - U ovoj tezi ispitivane su antioksidativne aktivnosti (AA) slobodnih aminokiselina (glicin, alanin, prolin, valin, izoleucin, leucin, fenilalanin, triptofan, tirozin, serin, treonin, asparagin, glutamin, histidin, asparaginska kiselina, glutaminska kiselina, lizin, arginin, cistein i metionin, homocistein, hidroksiprolin, norleucin, 2-aminobutanska kiselina i 3,4-dihidroksifenilalanin) u Fentonovom sistemu. Redosled reaktivnosti aminokiselina u reakciji sa hidroksil-radikalom, antioksidativne aktivnosti (HO•) bio je sledeći: Trp > norleucin > Phe, Leu > Ile > His >3,4-dihidroksifenilalanin, Arg > Val > Lys, Tyr, Pro > hidroksiprolin > α-aminobutanska kiselina > Gln, Thr, Ser > Glu, Ala, Gly, Asn, Asp. Aminokiseline koje sadrže sumpor su u reakciji sa hidroksil-radikalom davale više različitih radikalskih vrsta koje su ispitivane EPR metodom sa spinskim hvatačima...
AB  - In this thesis antioxidative activities (AA) of free L-amino acids (glycine, alanine, proline, valine, isoleucine, leucine, phenylalanine, tryptophane, tyrosine, serine, threonine, asparagine, glutamine, histidine, aspartic acid, glutamic acid, lysine, arginine, cystein and methionine, homocysteine, hydroxyproline, norleucine, α-aminobutyric acid and 3,4-dihydroxyphenylalanine) against Fenton system-mediated hydroxyl radical (HO•) production in aqueous solution were studied. The rank order according to AA was: Trp > norleucine > Phe, Leu > Ile > His >3,4-dihydroxyphenylalanine, Arg > Val > Lys, Tyr, Pro > hydroxyproline> α-aminobutyric acid > Gln, Thr, Ser > Glu, Ala, Gly, Asn, Asp. Sulfur-containing FAA generated different secondary reactive products, which were discriminated by the means of electron paramagnetic resonance spin-trapping spectroscopy...
PB  - Универзитет у Београду, Хемијски факултет
T2  - Универзитет у Београду
T1  - Redoks svojstva slobodnih aminokiselina i indola kao model-jedinjenja u Fentonovom sistemu
ER  - 
@phdthesis{
author = "Milić Komić, Sonja",
year = "2018",
abstract = "U ovoj tezi ispitivane su antioksidativne aktivnosti (AA) slobodnih aminokiselina (glicin, alanin, prolin, valin, izoleucin, leucin, fenilalanin, triptofan, tirozin, serin, treonin, asparagin, glutamin, histidin, asparaginska kiselina, glutaminska kiselina, lizin, arginin, cistein i metionin, homocistein, hidroksiprolin, norleucin, 2-aminobutanska kiselina i 3,4-dihidroksifenilalanin) u Fentonovom sistemu. Redosled reaktivnosti aminokiselina u reakciji sa hidroksil-radikalom, antioksidativne aktivnosti (HO•) bio je sledeći: Trp > norleucin > Phe, Leu > Ile > His >3,4-dihidroksifenilalanin, Arg > Val > Lys, Tyr, Pro > hidroksiprolin > α-aminobutanska kiselina > Gln, Thr, Ser > Glu, Ala, Gly, Asn, Asp. Aminokiseline koje sadrže sumpor su u reakciji sa hidroksil-radikalom davale više različitih radikalskih vrsta koje su ispitivane EPR metodom sa spinskim hvatačima..., In this thesis antioxidative activities (AA) of free L-amino acids (glycine, alanine, proline, valine, isoleucine, leucine, phenylalanine, tryptophane, tyrosine, serine, threonine, asparagine, glutamine, histidine, aspartic acid, glutamic acid, lysine, arginine, cystein and methionine, homocysteine, hydroxyproline, norleucine, α-aminobutyric acid and 3,4-dihydroxyphenylalanine) against Fenton system-mediated hydroxyl radical (HO•) production in aqueous solution were studied. The rank order according to AA was: Trp > norleucine > Phe, Leu > Ile > His >3,4-dihydroxyphenylalanine, Arg > Val > Lys, Tyr, Pro > hydroxyproline> α-aminobutyric acid > Gln, Thr, Ser > Glu, Ala, Gly, Asn, Asp. Sulfur-containing FAA generated different secondary reactive products, which were discriminated by the means of electron paramagnetic resonance spin-trapping spectroscopy...",
publisher = "Универзитет у Београду, Хемијски факултет",
journal = "Универзитет у Београду",
title = "Redoks svojstva slobodnih aminokiselina i indola kao model-jedinjenja u Fentonovom sistemu"
}
Milić Komić, S.. (2018). Redoks svojstva slobodnih aminokiselina i indola kao model-jedinjenja u Fentonovom sistemu. in Универзитет у Београду
Универзитет у Београду, Хемијски факултет..
Milić Komić S. Redoks svojstva slobodnih aminokiselina i indola kao model-jedinjenja u Fentonovom sistemu. in Универзитет у Београду. 2018;..
Milić Komić, Sonja, "Redoks svojstva slobodnih aminokiselina i indola kao model-jedinjenja u Fentonovom sistemu" in Универзитет у Београду (2018).

Redoks svojstva slobodnih aminokiselina i indola kao model-jedinjenja u Fentonovom sistemu

Milić Komić, Sonja

(Универзитет у Београду, Хемијски факултет, 2018)

TY  - THES
AU  - Milić Komić, Sonja
PY  - 2018
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=6270
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:18902/bdef:Content/download
UR  - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=50773775
UR  - http://nardus.mpn.gov.rs/123456789/10315
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/3166
AB  - U ovoj tezi ispitivane su antioksidativne aktivnosti (AA) slobodnih aminokiselina (glicin, alanin, prolin, valin, izoleucin, leucin, fenilalanin, triptofan, tirozin, serin, treonin, asparagin, glutamin, histidin, asparaginska kiselina, glutaminska kiselina, lizin, arginin, cistein i metionin, homocistein, hidroksiprolin, norleucin, 2-aminobutanska kiselina i 3,4-dihidroksifenilalanin) u Fentonovom sistemu. Redosled reaktivnosti aminokiselina u reakciji sa hidroksil-radikalom, antioksidativne aktivnosti (HO•) bio je sledeći: Trp > norleucin > Phe, Leu > Ile > His >3,4-dihidroksifenilalanin, Arg > Val > Lys, Tyr, Pro > hidroksiprolin > α-aminobutanska kiselina > Gln, Thr, Ser > Glu, Ala, Gly, Asn, Asp. Aminokiseline koje sadrže sumpor su u reakciji sa hidroksil-radikalom davale više različitih radikalskih vrsta koje su ispitivane EPR metodom sa spinskim hvatačima...
AB  - In this thesis antioxidative activities (AA) of free L-amino acids (glycine, alanine, proline, valine, isoleucine, leucine, phenylalanine, tryptophane, tyrosine, serine, threonine, asparagine, glutamine, histidine, aspartic acid, glutamic acid, lysine, arginine, cystein and methionine, homocysteine, hydroxyproline, norleucine, α-aminobutyric acid and 3,4-dihydroxyphenylalanine) against Fenton system-mediated hydroxyl radical (HO•) production in aqueous solution were studied. The rank order according to AA was: Trp > norleucine > Phe, Leu > Ile > His >3,4-dihydroxyphenylalanine, Arg > Val > Lys, Tyr, Pro > hydroxyproline> α-aminobutyric acid > Gln, Thr, Ser > Glu, Ala, Gly, Asn, Asp. Sulfur-containing FAA generated different secondary reactive products, which were discriminated by the means of electron paramagnetic resonance spin-trapping spectroscopy...
PB  - Универзитет у Београду, Хемијски факултет
T2  - Универзитет у Београду
T1  - Redoks svojstva slobodnih aminokiselina i indola kao model-jedinjenja u Fentonovom sistemu
ER  - 
@phdthesis{
author = "Milić Komić, Sonja",
year = "2018",
abstract = "U ovoj tezi ispitivane su antioksidativne aktivnosti (AA) slobodnih aminokiselina (glicin, alanin, prolin, valin, izoleucin, leucin, fenilalanin, triptofan, tirozin, serin, treonin, asparagin, glutamin, histidin, asparaginska kiselina, glutaminska kiselina, lizin, arginin, cistein i metionin, homocistein, hidroksiprolin, norleucin, 2-aminobutanska kiselina i 3,4-dihidroksifenilalanin) u Fentonovom sistemu. Redosled reaktivnosti aminokiselina u reakciji sa hidroksil-radikalom, antioksidativne aktivnosti (HO•) bio je sledeći: Trp > norleucin > Phe, Leu > Ile > His >3,4-dihidroksifenilalanin, Arg > Val > Lys, Tyr, Pro > hidroksiprolin > α-aminobutanska kiselina > Gln, Thr, Ser > Glu, Ala, Gly, Asn, Asp. Aminokiseline koje sadrže sumpor su u reakciji sa hidroksil-radikalom davale više različitih radikalskih vrsta koje su ispitivane EPR metodom sa spinskim hvatačima..., In this thesis antioxidative activities (AA) of free L-amino acids (glycine, alanine, proline, valine, isoleucine, leucine, phenylalanine, tryptophane, tyrosine, serine, threonine, asparagine, glutamine, histidine, aspartic acid, glutamic acid, lysine, arginine, cystein and methionine, homocysteine, hydroxyproline, norleucine, α-aminobutyric acid and 3,4-dihydroxyphenylalanine) against Fenton system-mediated hydroxyl radical (HO•) production in aqueous solution were studied. The rank order according to AA was: Trp > norleucine > Phe, Leu > Ile > His >3,4-dihydroxyphenylalanine, Arg > Val > Lys, Tyr, Pro > hydroxyproline> α-aminobutyric acid > Gln, Thr, Ser > Glu, Ala, Gly, Asn, Asp. Sulfur-containing FAA generated different secondary reactive products, which were discriminated by the means of electron paramagnetic resonance spin-trapping spectroscopy...",
publisher = "Универзитет у Београду, Хемијски факултет",
journal = "Универзитет у Београду",
title = "Redoks svojstva slobodnih aminokiselina i indola kao model-jedinjenja u Fentonovom sistemu"
}
Milić Komić, S.. (2018). Redoks svojstva slobodnih aminokiselina i indola kao model-jedinjenja u Fentonovom sistemu. in Универзитет у Београду
Универзитет у Београду, Хемијски факултет..
Milić Komić S. Redoks svojstva slobodnih aminokiselina i indola kao model-jedinjenja u Fentonovom sistemu. in Универзитет у Београду. 2018;..
Milić Komić, Sonja, "Redoks svojstva slobodnih aminokiselina i indola kao model-jedinjenja u Fentonovom sistemu" in Универзитет у Београду (2018).

Antioxidant efficiency of polyphenols from coffee and coffee substitutes-electrochemical versus spectrophotometric approach

Gorjanović, Stanislava; Komes, Drazenka; Lalicic-Petronijevic, Jovanka; Pastor, Ferenc; Belscak-Cvitanovic, Ana; Veljović, Mile S.; Pezo, Lato; Suznjevic, Desanka Z.

(Springer India, New Delhi, 2017)

TY  - JOUR
AU  - Gorjanović, Stanislava
AU  - Komes, Drazenka
AU  - Lalicic-Petronijevic, Jovanka
AU  - Pastor, Ferenc
AU  - Belscak-Cvitanovic, Ana
AU  - Veljović, Mile S.
AU  - Pezo, Lato
AU  - Suznjevic, Desanka Z.
PY  - 2017
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2484
AB  - Antioxidant (AO) capacity of instant, espresso, filter and Turkish/Greek coffee brews, coffee substitutes (roasted chicory root, barley, pea, chickpea, carob and dried fig) and individual compounds (phenolic acids, flavonoids, methylxanthines, N-methyl pyridinium and HMW melanoidins) was assessed using DC polarographic assay based on decrease of anodic current originating from hydroxo-perhydroxo mercury complex formed in alkaline solutions of H2O2 at potential of mercury dissolution, as well as three spectrophotometric assays (DPPH, ABTS and FRAP). A large difference between applied assays ability to recognize various types of individual AOs was noticed. Only according to DC polarographic assay significant AO activity was ascribed to methylxanthines and N-methyl pyridinum. The total content of phenolics (TPC) present in complex samples was determined by FC assay. The highest TPC was ascribed to instant coffees and coffee substitutes while the lowest to decaffeinated filter coffee. Complex samples were grouped based on principal components analysis, phenolics AO coefficient, calculated as the ratio between AO capacity and TPC, and relative AO capacity index (RACI), calculated by assigning equal weight to all applied assays including FC. The highest values of RACI were ascribed to instant coffee brews, followed by substitutes while the lowest to the decaffeinated espresso coffee.
PB  - Springer India, New Delhi
T2  - Journal of Food Science and Technology, Mysore
T1  - Antioxidant efficiency of polyphenols from coffee and coffee substitutes-electrochemical versus spectrophotometric approach
VL  - 54
IS  - 8
SP  - 2324
EP  - 2331
DO  - 10.1007/s13197-017-2672-y
UR  - Kon_3300
ER  - 
@article{
author = "Gorjanović, Stanislava and Komes, Drazenka and Lalicic-Petronijevic, Jovanka and Pastor, Ferenc and Belscak-Cvitanovic, Ana and Veljović, Mile S. and Pezo, Lato and Suznjevic, Desanka Z.",
year = "2017",
abstract = "Antioxidant (AO) capacity of instant, espresso, filter and Turkish/Greek coffee brews, coffee substitutes (roasted chicory root, barley, pea, chickpea, carob and dried fig) and individual compounds (phenolic acids, flavonoids, methylxanthines, N-methyl pyridinium and HMW melanoidins) was assessed using DC polarographic assay based on decrease of anodic current originating from hydroxo-perhydroxo mercury complex formed in alkaline solutions of H2O2 at potential of mercury dissolution, as well as three spectrophotometric assays (DPPH, ABTS and FRAP). A large difference between applied assays ability to recognize various types of individual AOs was noticed. Only according to DC polarographic assay significant AO activity was ascribed to methylxanthines and N-methyl pyridinum. The total content of phenolics (TPC) present in complex samples was determined by FC assay. The highest TPC was ascribed to instant coffees and coffee substitutes while the lowest to decaffeinated filter coffee. Complex samples were grouped based on principal components analysis, phenolics AO coefficient, calculated as the ratio between AO capacity and TPC, and relative AO capacity index (RACI), calculated by assigning equal weight to all applied assays including FC. The highest values of RACI were ascribed to instant coffee brews, followed by substitutes while the lowest to the decaffeinated espresso coffee.",
publisher = "Springer India, New Delhi",
journal = "Journal of Food Science and Technology, Mysore",
title = "Antioxidant efficiency of polyphenols from coffee and coffee substitutes-electrochemical versus spectrophotometric approach",
volume = "54",
number = "8",
pages = "2324-2331",
doi = "10.1007/s13197-017-2672-y",
url = "Kon_3300"
}
Gorjanović, S., Komes, D., Lalicic-Petronijevic, J., Pastor, F., Belscak-Cvitanovic, A., Veljović, M. S., Pezo, L.,& Suznjevic, D. Z.. (2017). Antioxidant efficiency of polyphenols from coffee and coffee substitutes-electrochemical versus spectrophotometric approach. in Journal of Food Science and Technology, Mysore
Springer India, New Delhi., 54(8), 2324-2331.
https://doi.org/10.1007/s13197-017-2672-y
Kon_3300
Gorjanović S, Komes D, Lalicic-Petronijevic J, Pastor F, Belscak-Cvitanovic A, Veljović MS, Pezo L, Suznjevic DZ. Antioxidant efficiency of polyphenols from coffee and coffee substitutes-electrochemical versus spectrophotometric approach. in Journal of Food Science and Technology, Mysore. 2017;54(8):2324-2331.
doi:10.1007/s13197-017-2672-y
Kon_3300 .
Gorjanović, Stanislava, Komes, Drazenka, Lalicic-Petronijevic, Jovanka, Pastor, Ferenc, Belscak-Cvitanovic, Ana, Veljović, Mile S., Pezo, Lato, Suznjevic, Desanka Z., "Antioxidant efficiency of polyphenols from coffee and coffee substitutes-electrochemical versus spectrophotometric approach" in Journal of Food Science and Technology, Mysore, 54, no. 8 (2017):2324-2331,
https://doi.org/10.1007/s13197-017-2672-y .,
Kon_3300 .
10
9
10
10

Ekološko-biohemijska proučavanja varijabilnosti autohtonih vrsta gljiva iz roda Trichoderma u različitim tipovima zemljišta

Racić, Gordana M.

(Универзитет у Београду, Хемијски факултет, 2017)

TY  - THES
AU  - Racić, Gordana M.
PY  - 2017
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=5293
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:16343/bdef:Content/download
UR  - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=49052943
UR  - http://nardus.mpn.gov.rs/123456789/8623
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2738
AB  - Gljive iz roda Trichoderma spp. su kosmopolitske filamentozne gljive koje se pojavljuju kao dominantne komponente zemljišnog ekosistema. Ekološka i biološka uloga ovih gljiva je veoma raznovrsna. Kao endofitni simbionti biljaka imaju primenu u kontroli biljnih bolesti čime pospešuju biljni rast i prinos. Takođe, poznata je i njihova sposobnost da indukuju otpornost kod biljaka koje su izložene biotičkom ili abiotičkom stresu. Pored važne primene u poljoprivredi one nalaze primenu i u različitim granama industrije jer proizvode mnogobrojne enzime i metabolite. Obzirom da su mnoge vrste u okviru ovog roda ne mogu razlikovati na morfološkom nivou, neophodna je njihova identifikacja na molekularnom nivou.Cilj ove teze bio je utvrđivanje najvažnijih faktora koji utiču na varijabilnost roda Trichoderma u različitim tipovima zemljišta. Molekularna identifikacija gljiva roda Trichoderma, izolovanih iz različitih tipova zemljišta (rendzina, sirozem na lesu, ritska crnica, fluvisol, ranker, gajnjača, černozem sa različitim podtipovima i smonica) i iz rizosfere različitih biljnih kultura urađena je analizom sekvenci ITS i TEF1-α gena. Uzorci zemljišta ispitani su u funkciji fizičko-hemijskih i mikrobioloških karakteristika, kao i sadržaja ukupnih i lakopristupačnih metala (Cr, Co, Ni, Cu, Zn, Cd, Pb i Mn). U cilju ispitivanja primene ovih gljiva kao antagonista fitopatogenih mikroorganizama, testirani su odabrani izolati prema Fusarium solani species complex (FSSC), Alternaria alternata i Phoma cucurbitacearum. Enzimska karakterizacija izolata odabranih za test antagonizma, urađena je semikvantitativnim testom API-ZYM. Kako bi se ispitao efekat ovih gljiva i na abiotski stres izazvan povećanim sadržajem metala u zemljištu, između ostalih, odabrani su izolati koji su identifikovani iz zemljišta u kojima je određena povećana koncentracija metala, bakra(II) i nikla(II). Na osnovu in vitro testa, gajenjem izolata na povećanim koncentracijama bakra(II) i nikla(II), odabran je izolat, koji je pokazao najveću tolerantnost i primenjen je u ispitivanju uticaja na biljke paradajza gajene u vodnom deficitu...
AB  - Fungi of the genus Trichoderma spp. are cosmopolitan species present in different ecosystems. with important ecological and biological roles.. Beneficial effects of this fungi are responsible for their use in various fields of biotechnology and agriculture. As plant endophytes they are involved in control of plant deseases. They are known to induce plant tolerance to various biotic and abiotic stresses. Known to produce different enzymes, they can be used in preparations of commercial products, such as biopesticides. However, for their adequate use and application their identification on the molecular level is of great importance.The aim of this thesis was to investigate the most important factors that influence Trichoderma variabilty in different soil types. Molecular identification of Trichoderma spp. from different soil types (Rendzic Leptosol, Regosol (Calcaric, Arenic), Calcic Gleysol, Fluvisol, Dystric Leptosol, Eutric Cambisol, Chernozem on loess terrace Chernozem (Arenic) and Vertisol) and plant rhizosphere of different crops was done based on their ITS and TEF1-α sequences. Variability was investigated in function of physical, chemical, microbiological properties of the soil, as well as total and extractable metal (Cr, Co, Ni, Cu, Zn, Cd, Pb and Mn) content in the soil. In order to examine the application of these fungi as antagonists of phytopathogens, selected strains of Trichoderma species were tested against Fusarium solani species complex (FSSC), Alternaria alternata and Phoma cucurbitacearum. The enzyme characterization of selected strains was performed with semiquantitative test API-ZYM. Furthermore, the selected strains were tested for tolerance to various concentrations of copper and nickel. The strain T. brevicompactum SZMC 22661 which showed the best tolerance to metals was applied in the examination of drought effect on tomato plants...
PB  - Универзитет у Београду, Хемијски факултет
T2  - Универзитет у Београду
T1  - Ekološko-biohemijska proučavanja varijabilnosti autohtonih vrsta gljiva iz roda Trichoderma u različitim tipovima zemljišta
ER  - 
@phdthesis{
author = "Racić, Gordana M.",
year = "2017",
abstract = "Gljive iz roda Trichoderma spp. su kosmopolitske filamentozne gljive koje se pojavljuju kao dominantne komponente zemljišnog ekosistema. Ekološka i biološka uloga ovih gljiva je veoma raznovrsna. Kao endofitni simbionti biljaka imaju primenu u kontroli biljnih bolesti čime pospešuju biljni rast i prinos. Takođe, poznata je i njihova sposobnost da indukuju otpornost kod biljaka koje su izložene biotičkom ili abiotičkom stresu. Pored važne primene u poljoprivredi one nalaze primenu i u različitim granama industrije jer proizvode mnogobrojne enzime i metabolite. Obzirom da su mnoge vrste u okviru ovog roda ne mogu razlikovati na morfološkom nivou, neophodna je njihova identifikacja na molekularnom nivou.Cilj ove teze bio je utvrđivanje najvažnijih faktora koji utiču na varijabilnost roda Trichoderma u različitim tipovima zemljišta. Molekularna identifikacija gljiva roda Trichoderma, izolovanih iz različitih tipova zemljišta (rendzina, sirozem na lesu, ritska crnica, fluvisol, ranker, gajnjača, černozem sa različitim podtipovima i smonica) i iz rizosfere različitih biljnih kultura urađena je analizom sekvenci ITS i TEF1-α gena. Uzorci zemljišta ispitani su u funkciji fizičko-hemijskih i mikrobioloških karakteristika, kao i sadržaja ukupnih i lakopristupačnih metala (Cr, Co, Ni, Cu, Zn, Cd, Pb i Mn). U cilju ispitivanja primene ovih gljiva kao antagonista fitopatogenih mikroorganizama, testirani su odabrani izolati prema Fusarium solani species complex (FSSC), Alternaria alternata i Phoma cucurbitacearum. Enzimska karakterizacija izolata odabranih za test antagonizma, urađena je semikvantitativnim testom API-ZYM. Kako bi se ispitao efekat ovih gljiva i na abiotski stres izazvan povećanim sadržajem metala u zemljištu, između ostalih, odabrani su izolati koji su identifikovani iz zemljišta u kojima je određena povećana koncentracija metala, bakra(II) i nikla(II). Na osnovu in vitro testa, gajenjem izolata na povećanim koncentracijama bakra(II) i nikla(II), odabran je izolat, koji je pokazao najveću tolerantnost i primenjen je u ispitivanju uticaja na biljke paradajza gajene u vodnom deficitu..., Fungi of the genus Trichoderma spp. are cosmopolitan species present in different ecosystems. with important ecological and biological roles.. Beneficial effects of this fungi are responsible for their use in various fields of biotechnology and agriculture. As plant endophytes they are involved in control of plant deseases. They are known to induce plant tolerance to various biotic and abiotic stresses. Known to produce different enzymes, they can be used in preparations of commercial products, such as biopesticides. However, for their adequate use and application their identification on the molecular level is of great importance.The aim of this thesis was to investigate the most important factors that influence Trichoderma variabilty in different soil types. Molecular identification of Trichoderma spp. from different soil types (Rendzic Leptosol, Regosol (Calcaric, Arenic), Calcic Gleysol, Fluvisol, Dystric Leptosol, Eutric Cambisol, Chernozem on loess terrace Chernozem (Arenic) and Vertisol) and plant rhizosphere of different crops was done based on their ITS and TEF1-α sequences. Variability was investigated in function of physical, chemical, microbiological properties of the soil, as well as total and extractable metal (Cr, Co, Ni, Cu, Zn, Cd, Pb and Mn) content in the soil. In order to examine the application of these fungi as antagonists of phytopathogens, selected strains of Trichoderma species were tested against Fusarium solani species complex (FSSC), Alternaria alternata and Phoma cucurbitacearum. The enzyme characterization of selected strains was performed with semiquantitative test API-ZYM. Furthermore, the selected strains were tested for tolerance to various concentrations of copper and nickel. The strain T. brevicompactum SZMC 22661 which showed the best tolerance to metals was applied in the examination of drought effect on tomato plants...",
publisher = "Универзитет у Београду, Хемијски факултет",
journal = "Универзитет у Београду",
title = "Ekološko-biohemijska proučavanja varijabilnosti autohtonih vrsta gljiva iz roda Trichoderma u različitim tipovima zemljišta"
}
Racić, G. M.. (2017). Ekološko-biohemijska proučavanja varijabilnosti autohtonih vrsta gljiva iz roda Trichoderma u različitim tipovima zemljišta. in Универзитет у Београду
Универзитет у Београду, Хемијски факултет..
Racić GM. Ekološko-biohemijska proučavanja varijabilnosti autohtonih vrsta gljiva iz roda Trichoderma u različitim tipovima zemljišta. in Универзитет у Београду. 2017;..
Racić, Gordana M., "Ekološko-biohemijska proučavanja varijabilnosti autohtonih vrsta gljiva iz roda Trichoderma u različitim tipovima zemljišta" in Универзитет у Београду (2017).

Content of Total Phenolics, Flavan-3-Ols and Proanthocyanidins, Oxidative Stability and Antioxidant Capacity of Chocolate During Storage

Lalicic-Petronijevic, Jovanka; Komes, Drazenka; Gorjanović, Stanislava; Belscak-Cvitanovic, Ana; Pezo, Lato; Pastor, Ferenc; Ostojić, Sanja B.; Popov-Raljic, Jovanka; Suznjevic, Desanka

(Faculty Food Technology Biotechnology, Zagreb, 2016)

TY  - JOUR
AU  - Lalicic-Petronijevic, Jovanka
AU  - Komes, Drazenka
AU  - Gorjanović, Stanislava
AU  - Belscak-Cvitanovic, Ana
AU  - Pezo, Lato
AU  - Pastor, Ferenc
AU  - Ostojić, Sanja B.
AU  - Popov-Raljic, Jovanka
AU  - Suznjevic, Desanka
PY  - 2016
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1919
AB  - Antioxidant (AO) capacity of chocolates with 27, 44 and 75 % cocoa was assessed after production and during twelve months of storage by direct current (DC) polarographic assay, based on the decrease of anodic current caused by the formation of hydroxo-perhydroxyl mercury(II) complex (HPMC) in alkaline solutions of hydrogen peroxide at potentials of mercury oxidation, and two spectrophotometric assays. Relative antioxidant capacity index (RACI) was calculated by taking the average value of the AO assay (the sample mass in all assays was identical). Oxidative stability of chocolate fat was determined by differential scanning calorimetry. Measured parameters and RACI were correlated mutually and with the content of total phenols (Folin-Ciocalteu assay), flavan-3-ols (vanillin and p-dimethylaminocinnamaldehyde assay) and proanthocyanidins (modified Bate-Smith assay). During storage, the studied functional and health-related characteristics remained unchanged. Amongst applied AO assays, the DC polarographic one, whose validity was confirmed by two-way ANOVA and F-test, correlated most significantly with oxidative stability (oxidation onset temperature and induction time). In addition, principal component analysis was applied to characterise chocolate types.
PB  - Faculty Food Technology Biotechnology, Zagreb
T2  - Food Technology and Biotechnology
T1  - Content of Total Phenolics, Flavan-3-Ols and Proanthocyanidins, Oxidative Stability and Antioxidant Capacity of Chocolate During Storage
VL  - 54
IS  - 1
SP  - 13
EP  - 20
UR  - Kon_3038
ER  - 
@article{
author = "Lalicic-Petronijevic, Jovanka and Komes, Drazenka and Gorjanović, Stanislava and Belscak-Cvitanovic, Ana and Pezo, Lato and Pastor, Ferenc and Ostojić, Sanja B. and Popov-Raljic, Jovanka and Suznjevic, Desanka",
year = "2016",
abstract = "Antioxidant (AO) capacity of chocolates with 27, 44 and 75 % cocoa was assessed after production and during twelve months of storage by direct current (DC) polarographic assay, based on the decrease of anodic current caused by the formation of hydroxo-perhydroxyl mercury(II) complex (HPMC) in alkaline solutions of hydrogen peroxide at potentials of mercury oxidation, and two spectrophotometric assays. Relative antioxidant capacity index (RACI) was calculated by taking the average value of the AO assay (the sample mass in all assays was identical). Oxidative stability of chocolate fat was determined by differential scanning calorimetry. Measured parameters and RACI were correlated mutually and with the content of total phenols (Folin-Ciocalteu assay), flavan-3-ols (vanillin and p-dimethylaminocinnamaldehyde assay) and proanthocyanidins (modified Bate-Smith assay). During storage, the studied functional and health-related characteristics remained unchanged. Amongst applied AO assays, the DC polarographic one, whose validity was confirmed by two-way ANOVA and F-test, correlated most significantly with oxidative stability (oxidation onset temperature and induction time). In addition, principal component analysis was applied to characterise chocolate types.",
publisher = "Faculty Food Technology Biotechnology, Zagreb",
journal = "Food Technology and Biotechnology",
title = "Content of Total Phenolics, Flavan-3-Ols and Proanthocyanidins, Oxidative Stability and Antioxidant Capacity of Chocolate During Storage",
volume = "54",
number = "1",
pages = "13-20",
url = "Kon_3038"
}
Lalicic-Petronijevic, J., Komes, D., Gorjanović, S., Belscak-Cvitanovic, A., Pezo, L., Pastor, F., Ostojić, S. B., Popov-Raljic, J.,& Suznjevic, D.. (2016). Content of Total Phenolics, Flavan-3-Ols and Proanthocyanidins, Oxidative Stability and Antioxidant Capacity of Chocolate During Storage. in Food Technology and Biotechnology
Faculty Food Technology Biotechnology, Zagreb., 54(1), 13-20.
Kon_3038
Lalicic-Petronijevic J, Komes D, Gorjanović S, Belscak-Cvitanovic A, Pezo L, Pastor F, Ostojić SB, Popov-Raljic J, Suznjevic D. Content of Total Phenolics, Flavan-3-Ols and Proanthocyanidins, Oxidative Stability and Antioxidant Capacity of Chocolate During Storage. in Food Technology and Biotechnology. 2016;54(1):13-20.
Kon_3038 .
Lalicic-Petronijevic, Jovanka, Komes, Drazenka, Gorjanović, Stanislava, Belscak-Cvitanovic, Ana, Pezo, Lato, Pastor, Ferenc, Ostojić, Sanja B., Popov-Raljic, Jovanka, Suznjevic, Desanka, "Content of Total Phenolics, Flavan-3-Ols and Proanthocyanidins, Oxidative Stability and Antioxidant Capacity of Chocolate During Storage" in Food Technology and Biotechnology, 54, no. 1 (2016):13-20,
Kon_3038 .
10
10

Antioxidant Capacity Determination of Complex Samples and Individual Phenolics - Multilateral Approach

Petrović, Marija S.; Suznjevic, Desanka; Pastor, Ferenc; Veljović, Mile S.; Pezo, Lato; Antić, Mališa; Gorjanović, Stanislava

(Bentham Science Publ Ltd, Sharjah, 2016)

TY  - JOUR
AU  - Petrović, Marija S.
AU  - Suznjevic, Desanka
AU  - Pastor, Ferenc
AU  - Veljović, Mile S.
AU  - Pezo, Lato
AU  - Antić, Mališa
AU  - Gorjanović, Stanislava
PY  - 2016
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1963
AB  - Antioxidant (AO) capacity of various medicinal plants extracts and phenolic compounds was assessed by the most widely used spectrophotometric assays such as ferric reducing antioxidant power (FRAP) and scavenging of 2,2-azino-bis-3-ethylbenzothiazoline-6-sulfonic acid (ABTS) and 2,2-diphenyl-1-picrylhydrazyl (DPPH). In addition, two direct current (DC) polarographic assays, one based on a decrease of anodic current of [Hg(O2H)(OH)]-HydroxoPerhydroxoMercury(II) Complex (HPMC) formation in alkaline solution of H2O2, at the potential of mercury dissolution and another recently developed Mercury Reduction Antioxidant Power (MRAP), based on a a decrease of cathodic current of Hg(II) reduction were employed. Percentage of both currents decrease was plotted versus the volume of gradually added complex samples or the amount of individual ones and the slopes of these plots were used to express AO capacity. Total phenolic content (TPC) of extracts was determined by Folin-Ciocalteu (FC) assay. Correlations between applied assays were calculated by regression analysis. Relative Antioxidant Capacity Index (RACI), calculated by assigning equal weight to all applied assays and Phenolic Antioxidant Coefficients (PAC), calculated as a ratio between particular AO capacity and TPC, were used to achieve more comprehensive comparison between analyzed samples, as well as applied assays.
PB  - Bentham Science Publ Ltd, Sharjah
T2  - Combinatorial Chemistry and High Throughput Screening
T1  - Antioxidant Capacity Determination of Complex Samples and Individual Phenolics - Multilateral Approach
VL  - 19
IS  - 1
SP  - 58
EP  - 65
DO  - 10.2174/1386207318666151102094227
UR  - Kon_2918
ER  - 
@article{
author = "Petrović, Marija S. and Suznjevic, Desanka and Pastor, Ferenc and Veljović, Mile S. and Pezo, Lato and Antić, Mališa and Gorjanović, Stanislava",
year = "2016",
abstract = "Antioxidant (AO) capacity of various medicinal plants extracts and phenolic compounds was assessed by the most widely used spectrophotometric assays such as ferric reducing antioxidant power (FRAP) and scavenging of 2,2-azino-bis-3-ethylbenzothiazoline-6-sulfonic acid (ABTS) and 2,2-diphenyl-1-picrylhydrazyl (DPPH). In addition, two direct current (DC) polarographic assays, one based on a decrease of anodic current of [Hg(O2H)(OH)]-HydroxoPerhydroxoMercury(II) Complex (HPMC) formation in alkaline solution of H2O2, at the potential of mercury dissolution and another recently developed Mercury Reduction Antioxidant Power (MRAP), based on a a decrease of cathodic current of Hg(II) reduction were employed. Percentage of both currents decrease was plotted versus the volume of gradually added complex samples or the amount of individual ones and the slopes of these plots were used to express AO capacity. Total phenolic content (TPC) of extracts was determined by Folin-Ciocalteu (FC) assay. Correlations between applied assays were calculated by regression analysis. Relative Antioxidant Capacity Index (RACI), calculated by assigning equal weight to all applied assays and Phenolic Antioxidant Coefficients (PAC), calculated as a ratio between particular AO capacity and TPC, were used to achieve more comprehensive comparison between analyzed samples, as well as applied assays.",
publisher = "Bentham Science Publ Ltd, Sharjah",
journal = "Combinatorial Chemistry and High Throughput Screening",
title = "Antioxidant Capacity Determination of Complex Samples and Individual Phenolics - Multilateral Approach",
volume = "19",
number = "1",
pages = "58-65",
doi = "10.2174/1386207318666151102094227",
url = "Kon_2918"
}
Petrović, M. S., Suznjevic, D., Pastor, F., Veljović, M. S., Pezo, L., Antić, M.,& Gorjanović, S.. (2016). Antioxidant Capacity Determination of Complex Samples and Individual Phenolics - Multilateral Approach. in Combinatorial Chemistry and High Throughput Screening
Bentham Science Publ Ltd, Sharjah., 19(1), 58-65.
https://doi.org/10.2174/1386207318666151102094227
Kon_2918
Petrović MS, Suznjevic D, Pastor F, Veljović MS, Pezo L, Antić M, Gorjanović S. Antioxidant Capacity Determination of Complex Samples and Individual Phenolics - Multilateral Approach. in Combinatorial Chemistry and High Throughput Screening. 2016;19(1):58-65.
doi:10.2174/1386207318666151102094227
Kon_2918 .
Petrović, Marija S., Suznjevic, Desanka, Pastor, Ferenc, Veljović, Mile S., Pezo, Lato, Antić, Mališa, Gorjanović, Stanislava, "Antioxidant Capacity Determination of Complex Samples and Individual Phenolics - Multilateral Approach" in Combinatorial Chemistry and High Throughput Screening, 19, no. 1 (2016):58-65,
https://doi.org/10.2174/1386207318666151102094227 .,
Kon_2918 .
17
15
16

Comparative analysis of phenolic profiles of ovipositional fluid of Rhinusa pilosa (Mecinini, Curculionidae) and its host plant Linaria vulgaris (Plantaginaceae)

Sedlarević, Ana; Morina, Filis; Toševski, Ivo; Gašić, Uroš M.; Natić, Maja; Jović, Jelena; Krstić, Oliver; Veljović-Jovanović, Sonja

(Springer, Dordrecht, 2016)

TY  - JOUR
AU  - Sedlarević, Ana
AU  - Morina, Filis
AU  - Toševski, Ivo
AU  - Gašić, Uroš M.
AU  - Natić, Maja
AU  - Jović, Jelena
AU  - Krstić, Oliver
AU  - Veljović-Jovanović, Sonja
PY  - 2016
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2279
AB  - Rhinusa pilosa (Gyllenhal) is a highly specific weevil that induces stem galls on the common toadflax Linaria vulgaris Mill. females oviposit the eggs near the apex of a growing shoot. The act of oviposition is accompanied by secretion of an ovipositional fluid, which is considered to be cecidogen, directly involved in gall induction. The remains of cecidogenic fluid were collected from the surface of the oviposition point on the stem. We performed a comparative analysis of the phenolics extracted from cecidogen, the stem and galls of L. vulgaris and adult and larva of R. pilosa by HPLC-DAD. One compound with A (max) at 273, 332 nm (R (t) 30.65 min) was exclusively found in the methanol extract of cecidogen. To further characterize the cecidogen and stem phenolic profiles, we used UHPLC coupled with an OrbiTrap mass analyzer. Among 49 phenolic compounds extracted from both the ovipositional fluid and the plant, protocatechuic acid and two phenolic glycosides were exclusively found in cecidogen: diosmetin-O-acetylrutinoside and an unidentified compound. The unknown compound produced an MS2 base peak at 387 and 327 and 267 m/z base peaks at MS3 and MS4 fragmentation, respectively, and had the molecular formula C32H31O18. The plausible role of phenolic compounds in the induction of gall formation on L. vulgaris is discussed.
PB  - Springer, Dordrecht
T2  - Arthropod-Plant Interactions
T1  - Comparative analysis of phenolic profiles of ovipositional fluid of Rhinusa pilosa (Mecinini, Curculionidae) and its host plant Linaria vulgaris (Plantaginaceae)
VL  - 10
IS  - 4
SP  - 311
EP  - 322
DO  - 10.1007/s11829-016-9435-y
UR  - Kon_3095
ER  - 
@article{
author = "Sedlarević, Ana and Morina, Filis and Toševski, Ivo and Gašić, Uroš M. and Natić, Maja and Jović, Jelena and Krstić, Oliver and Veljović-Jovanović, Sonja",
year = "2016",
abstract = "Rhinusa pilosa (Gyllenhal) is a highly specific weevil that induces stem galls on the common toadflax Linaria vulgaris Mill. females oviposit the eggs near the apex of a growing shoot. The act of oviposition is accompanied by secretion of an ovipositional fluid, which is considered to be cecidogen, directly involved in gall induction. The remains of cecidogenic fluid were collected from the surface of the oviposition point on the stem. We performed a comparative analysis of the phenolics extracted from cecidogen, the stem and galls of L. vulgaris and adult and larva of R. pilosa by HPLC-DAD. One compound with A (max) at 273, 332 nm (R (t) 30.65 min) was exclusively found in the methanol extract of cecidogen. To further characterize the cecidogen and stem phenolic profiles, we used UHPLC coupled with an OrbiTrap mass analyzer. Among 49 phenolic compounds extracted from both the ovipositional fluid and the plant, protocatechuic acid and two phenolic glycosides were exclusively found in cecidogen: diosmetin-O-acetylrutinoside and an unidentified compound. The unknown compound produced an MS2 base peak at 387 and 327 and 267 m/z base peaks at MS3 and MS4 fragmentation, respectively, and had the molecular formula C32H31O18. The plausible role of phenolic compounds in the induction of gall formation on L. vulgaris is discussed.",
publisher = "Springer, Dordrecht",
journal = "Arthropod-Plant Interactions",
title = "Comparative analysis of phenolic profiles of ovipositional fluid of Rhinusa pilosa (Mecinini, Curculionidae) and its host plant Linaria vulgaris (Plantaginaceae)",
volume = "10",
number = "4",
pages = "311-322",
doi = "10.1007/s11829-016-9435-y",
url = "Kon_3095"
}
Sedlarević, A., Morina, F., Toševski, I., Gašić, U. M., Natić, M., Jović, J., Krstić, O.,& Veljović-Jovanović, S.. (2016). Comparative analysis of phenolic profiles of ovipositional fluid of Rhinusa pilosa (Mecinini, Curculionidae) and its host plant Linaria vulgaris (Plantaginaceae). in Arthropod-Plant Interactions
Springer, Dordrecht., 10(4), 311-322.
https://doi.org/10.1007/s11829-016-9435-y
Kon_3095
Sedlarević A, Morina F, Toševski I, Gašić UM, Natić M, Jović J, Krstić O, Veljović-Jovanović S. Comparative analysis of phenolic profiles of ovipositional fluid of Rhinusa pilosa (Mecinini, Curculionidae) and its host plant Linaria vulgaris (Plantaginaceae). in Arthropod-Plant Interactions. 2016;10(4):311-322.
doi:10.1007/s11829-016-9435-y
Kon_3095 .
Sedlarević, Ana, Morina, Filis, Toševski, Ivo, Gašić, Uroš M., Natić, Maja, Jović, Jelena, Krstić, Oliver, Veljović-Jovanović, Sonja, "Comparative analysis of phenolic profiles of ovipositional fluid of Rhinusa pilosa (Mecinini, Curculionidae) and its host plant Linaria vulgaris (Plantaginaceae)" in Arthropod-Plant Interactions, 10, no. 4 (2016):311-322,
https://doi.org/10.1007/s11829-016-9435-y .,
Kon_3095 .
3
2
2

DC polarographic examination of Hg2+ reduction applicability to antioxidant activity determination

Suznjevic, Desanka Z.; Pastor, Ferenc; Gorjanović, Stanislava

(Pergamon-Elsevier Science Ltd, Oxford, 2015)

TY  - JOUR
AU  - Suznjevic, Desanka Z.
AU  - Pastor, Ferenc
AU  - Gorjanović, Stanislava
PY  - 2015
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1708
AB  - Direct current polarographic (DCP) antioxidant assay based on the decrease of anodic limiting current of HydroxoPerhydroxoMercury(II) Complex [Hg(O2H)(OH)] (HPMC) upon addition of antioxidants (AOs) was verified. Here, influence of several common AOs on DCP cathodic currents of both HPMC and Hg2+ was followed. Amperometric titrations of HPMC and Hg2+ with AOs and potentiometric titrations of Hg2+ were performed. The changes of DCP i-E curves and limiting currents decrease during amperometric titrations, as well as end points of amperometric and potentiometric titrations for each AO used as titrant proved the occurrence of Hg2+ reduction, either from complex (HPMC) or salt (HgCl2) solution. Constant H2O2 reduction current during amperometric titration of HPMC further confirmed the participation of Hg2+ as the oxidant species in reaction with AOs. The possibility of determining AO activity of flavonoids, phenolic acids, ascorbic acid and Trolox based on the decrease of Hg2+ reduction current was demonstrated. Strict correlation (R-2 = 0.96) between a new AO assay named MRAP (Mercury Reduction Antioxidant Power) and HPMC assay was found. Total AO capacity of real samples was measured by the proposed fast, simple and inexpensive MRAP assay as well. (C) 2015 Elsevier Ltd. All rights reserved.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Electrochimica Acta
T1  - DC polarographic examination of Hg2+ reduction applicability to antioxidant activity determination
VL  - 168
SP  - 240
EP  - 245
DO  - 10.1016/j.electacta.2015.04.008
UR  - Kon_2854
ER  - 
@article{
author = "Suznjevic, Desanka Z. and Pastor, Ferenc and Gorjanović, Stanislava",
year = "2015",
abstract = "Direct current polarographic (DCP) antioxidant assay based on the decrease of anodic limiting current of HydroxoPerhydroxoMercury(II) Complex [Hg(O2H)(OH)] (HPMC) upon addition of antioxidants (AOs) was verified. Here, influence of several common AOs on DCP cathodic currents of both HPMC and Hg2+ was followed. Amperometric titrations of HPMC and Hg2+ with AOs and potentiometric titrations of Hg2+ were performed. The changes of DCP i-E curves and limiting currents decrease during amperometric titrations, as well as end points of amperometric and potentiometric titrations for each AO used as titrant proved the occurrence of Hg2+ reduction, either from complex (HPMC) or salt (HgCl2) solution. Constant H2O2 reduction current during amperometric titration of HPMC further confirmed the participation of Hg2+ as the oxidant species in reaction with AOs. The possibility of determining AO activity of flavonoids, phenolic acids, ascorbic acid and Trolox based on the decrease of Hg2+ reduction current was demonstrated. Strict correlation (R-2 = 0.96) between a new AO assay named MRAP (Mercury Reduction Antioxidant Power) and HPMC assay was found. Total AO capacity of real samples was measured by the proposed fast, simple and inexpensive MRAP assay as well. (C) 2015 Elsevier Ltd. All rights reserved.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Electrochimica Acta",
title = "DC polarographic examination of Hg2+ reduction applicability to antioxidant activity determination",
volume = "168",
pages = "240-245",
doi = "10.1016/j.electacta.2015.04.008",
url = "Kon_2854"
}
Suznjevic, D. Z., Pastor, F.,& Gorjanović, S.. (2015). DC polarographic examination of Hg2+ reduction applicability to antioxidant activity determination. in Electrochimica Acta
Pergamon-Elsevier Science Ltd, Oxford., 168, 240-245.
https://doi.org/10.1016/j.electacta.2015.04.008
Kon_2854
Suznjevic DZ, Pastor F, Gorjanović S. DC polarographic examination of Hg2+ reduction applicability to antioxidant activity determination. in Electrochimica Acta. 2015;168:240-245.
doi:10.1016/j.electacta.2015.04.008
Kon_2854 .
Suznjevic, Desanka Z., Pastor, Ferenc, Gorjanović, Stanislava, "DC polarographic examination of Hg2+ reduction applicability to antioxidant activity determination" in Electrochimica Acta, 168 (2015):240-245,
https://doi.org/10.1016/j.electacta.2015.04.008 .,
Kon_2854 .
6
5
8

Reduction of Hg2+ by Individual Phenolics and Complex Samples and Its Application in Polarographic Antioxidant Assay

Suznjevic, Desanka; Petrović, Marija S.; Pastor, Ferenc; Veljović, Mile S.; Zlatanović, Snežana; Antić, Mališa; Gorjanović, Stanislava

(Electrochemical Soc Inc, Pennington, 2015)

TY  - JOUR
AU  - Suznjevic, Desanka
AU  - Petrović, Marija S.
AU  - Pastor, Ferenc
AU  - Veljović, Mile S.
AU  - Zlatanović, Snežana
AU  - Antić, Mališa
AU  - Gorjanović, Stanislava
PY  - 2015
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1721
AB  - Direct current (DC) polarographic antioxidant (AO) HPMC assay based on the decrease of anodic limiting current of [Hg(O2H)(OH)] (HydroxoPerhydroxoMercury(II) Complex-HPMC), formed in alkaline solution of H2O2, at potential of mercury oxidation, occurring upon AO addition, was validated and widely used recently. Here, a novel DC polarographic assay, MRAP (Mercury Reduction Antioxidant Power), based on the decrease of Hg2+ cathodic current with addition of AOs was applied. Percentage of this decrease was plotted versus the amount of various individual phenolics or the volume of medicinal plant extracts, and the slope obtained was used to express AO activity. A high correlation between MRAP and HPMC assays was found for individual compounds (r = 0.974) and real samples (r = 0.968). MRAP was shown to be effective in the determination of AO activity of both synthetic mixtures of individual AOs and real samples containing various AOs. Agreement between the decrease of Hg2+ cathodic current and HPMC anodic current lead to the assumption that Hg2+ reduction causes a decrease in concentration of Hg2+ available for HMPC complex formation, i.e. its anodic current decrease. The validity Of MRAP assay was also confirmed through good correlation with FRAP assay.
PB  - Electrochemical Soc Inc, Pennington
T2  - Journal of the Electrochemical Society
T1  - Reduction of Hg2+ by Individual Phenolics and Complex Samples and Its Application in Polarographic Antioxidant Assay
VL  - 162
IS  - 7
DO  - 10.1149/2.0141507jes
UR  - Kon_2867
ER  - 
@article{
author = "Suznjevic, Desanka and Petrović, Marija S. and Pastor, Ferenc and Veljović, Mile S. and Zlatanović, Snežana and Antić, Mališa and Gorjanović, Stanislava",
year = "2015",
abstract = "Direct current (DC) polarographic antioxidant (AO) HPMC assay based on the decrease of anodic limiting current of [Hg(O2H)(OH)] (HydroxoPerhydroxoMercury(II) Complex-HPMC), formed in alkaline solution of H2O2, at potential of mercury oxidation, occurring upon AO addition, was validated and widely used recently. Here, a novel DC polarographic assay, MRAP (Mercury Reduction Antioxidant Power), based on the decrease of Hg2+ cathodic current with addition of AOs was applied. Percentage of this decrease was plotted versus the amount of various individual phenolics or the volume of medicinal plant extracts, and the slope obtained was used to express AO activity. A high correlation between MRAP and HPMC assays was found for individual compounds (r = 0.974) and real samples (r = 0.968). MRAP was shown to be effective in the determination of AO activity of both synthetic mixtures of individual AOs and real samples containing various AOs. Agreement between the decrease of Hg2+ cathodic current and HPMC anodic current lead to the assumption that Hg2+ reduction causes a decrease in concentration of Hg2+ available for HMPC complex formation, i.e. its anodic current decrease. The validity Of MRAP assay was also confirmed through good correlation with FRAP assay.",
publisher = "Electrochemical Soc Inc, Pennington",
journal = "Journal of the Electrochemical Society",
title = "Reduction of Hg2+ by Individual Phenolics and Complex Samples and Its Application in Polarographic Antioxidant Assay",
volume = "162",
number = "7",
doi = "10.1149/2.0141507jes",
url = "Kon_2867"
}
Suznjevic, D., Petrović, M. S., Pastor, F., Veljović, M. S., Zlatanović, S., Antić, M.,& Gorjanović, S.. (2015). Reduction of Hg2+ by Individual Phenolics and Complex Samples and Its Application in Polarographic Antioxidant Assay. in Journal of the Electrochemical Society
Electrochemical Soc Inc, Pennington., 162(7).
https://doi.org/10.1149/2.0141507jes
Kon_2867
Suznjevic D, Petrović MS, Pastor F, Veljović MS, Zlatanović S, Antić M, Gorjanović S. Reduction of Hg2+ by Individual Phenolics and Complex Samples and Its Application in Polarographic Antioxidant Assay. in Journal of the Electrochemical Society. 2015;162(7).
doi:10.1149/2.0141507jes
Kon_2867 .
Suznjevic, Desanka, Petrović, Marija S., Pastor, Ferenc, Veljović, Mile S., Zlatanović, Snežana, Antić, Mališa, Gorjanović, Stanislava, "Reduction of Hg2+ by Individual Phenolics and Complex Samples and Its Application in Polarographic Antioxidant Assay" in Journal of the Electrochemical Society, 162, no. 7 (2015),
https://doi.org/10.1149/2.0141507jes .,
Kon_2867 .
4
4
5

Carbon allocation from source to sink leaf tissue in relation to flavonoid biosynthesis in variegated Pelargonium zonale under UV-B radiation and high PAR intensity

Vidović, Marija; Morina, Filis; Milic, Sonja; Albert, Andreas; Zechmann, Bernd; Tosti, Tomislav; Winkler, Jana Barbro; Veljović-Jovanović, Sonja

(Elsevier France-Editions Scientifiques Medicales Elsevier, Paris, 2015)

TY  - JOUR
AU  - Vidović, Marija
AU  - Morina, Filis
AU  - Milic, Sonja
AU  - Albert, Andreas
AU  - Zechmann, Bernd
AU  - Tosti, Tomislav
AU  - Winkler, Jana Barbro
AU  - Veljović-Jovanović, Sonja
PY  - 2015
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1727
AB  - We studied the specific effects of high photosynthetically active radiation (PAR, 400-700 nm) and ecologically relevant UV-B radiation (0.90 W m(-2)) on antioxidative and phenolic metabolism by exploiting the green-white leaf variegation of Pelargonium zonale plants. This is a suitable model system for examining "source-sink" interactions within the same leaf. High PAR intensity (1350 mu mol m(-2) s(-1)) and UV-B radiation induced different responses in green and white leaf sectors. High PAR intensity had a greater influence on green tissue, triggering the accumulation of phenylpropanoids and flavonoids with strong antioxidative function. Induced phenolics, together with ascorbate, ascorbate peroxidase (APX, EC 1.11.1.11) and catalase (CAT, EC 1.11.1.6) provided efficient defense against potential oxidative pressure. UV-B-induced up-regulation of non-phenolic H2O2 scavengers in green leaf sectors was greater than high PAR-induced changes, indicating a UV-B role in antioxidative defense under light excess; on the contrary, minimal effects were observed in white tissue. However, UV-B radiation had greater influence on phenolics in white leaf sections compared to green ones, inducing accumulation of phenolic glycosides whose function was UV-B screening rather than antioxidative. By stimulation of starch and sucrose breakdown and carbon allocation in the form of soluble sugars from "source" (green) tissue to "sink" (white) tissue, UV-B radiation compensated the absence of photosynthetic activity and phenylpropanoid and flavonoid biosynthesis in white sectors. (C) 2015 Elsevier Masson SAS. All rights reserved.
PB  - Elsevier France-Editions Scientifiques Medicales Elsevier, Paris
T2  - Plant Physiology and Biochemistry
T1  - Carbon allocation from source to sink leaf tissue in relation to flavonoid biosynthesis in variegated Pelargonium zonale under UV-B radiation and high PAR intensity
VL  - 93
SP  - 44
EP  - 55
DO  - 10.1016/j.plaphy.2015.01.008
UR  - Kon_2873
ER  - 
@article{
author = "Vidović, Marija and Morina, Filis and Milic, Sonja and Albert, Andreas and Zechmann, Bernd and Tosti, Tomislav and Winkler, Jana Barbro and Veljović-Jovanović, Sonja",
year = "2015",
abstract = "We studied the specific effects of high photosynthetically active radiation (PAR, 400-700 nm) and ecologically relevant UV-B radiation (0.90 W m(-2)) on antioxidative and phenolic metabolism by exploiting the green-white leaf variegation of Pelargonium zonale plants. This is a suitable model system for examining "source-sink" interactions within the same leaf. High PAR intensity (1350 mu mol m(-2) s(-1)) and UV-B radiation induced different responses in green and white leaf sectors. High PAR intensity had a greater influence on green tissue, triggering the accumulation of phenylpropanoids and flavonoids with strong antioxidative function. Induced phenolics, together with ascorbate, ascorbate peroxidase (APX, EC 1.11.1.11) and catalase (CAT, EC 1.11.1.6) provided efficient defense against potential oxidative pressure. UV-B-induced up-regulation of non-phenolic H2O2 scavengers in green leaf sectors was greater than high PAR-induced changes, indicating a UV-B role in antioxidative defense under light excess; on the contrary, minimal effects were observed in white tissue. However, UV-B radiation had greater influence on phenolics in white leaf sections compared to green ones, inducing accumulation of phenolic glycosides whose function was UV-B screening rather than antioxidative. By stimulation of starch and sucrose breakdown and carbon allocation in the form of soluble sugars from "source" (green) tissue to "sink" (white) tissue, UV-B radiation compensated the absence of photosynthetic activity and phenylpropanoid and flavonoid biosynthesis in white sectors. (C) 2015 Elsevier Masson SAS. All rights reserved.",
publisher = "Elsevier France-Editions Scientifiques Medicales Elsevier, Paris",
journal = "Plant Physiology and Biochemistry",
title = "Carbon allocation from source to sink leaf tissue in relation to flavonoid biosynthesis in variegated Pelargonium zonale under UV-B radiation and high PAR intensity",
volume = "93",
pages = "44-55",
doi = "10.1016/j.plaphy.2015.01.008",
url = "Kon_2873"
}
Vidović, M., Morina, F., Milic, S., Albert, A., Zechmann, B., Tosti, T., Winkler, J. B.,& Veljović-Jovanović, S.. (2015). Carbon allocation from source to sink leaf tissue in relation to flavonoid biosynthesis in variegated Pelargonium zonale under UV-B radiation and high PAR intensity. in Plant Physiology and Biochemistry
Elsevier France-Editions Scientifiques Medicales Elsevier, Paris., 93, 44-55.
https://doi.org/10.1016/j.plaphy.2015.01.008
Kon_2873
Vidović M, Morina F, Milic S, Albert A, Zechmann B, Tosti T, Winkler JB, Veljović-Jovanović S. Carbon allocation from source to sink leaf tissue in relation to flavonoid biosynthesis in variegated Pelargonium zonale under UV-B radiation and high PAR intensity. in Plant Physiology and Biochemistry. 2015;93:44-55.
doi:10.1016/j.plaphy.2015.01.008
Kon_2873 .
Vidović, Marija, Morina, Filis, Milic, Sonja, Albert, Andreas, Zechmann, Bernd, Tosti, Tomislav, Winkler, Jana Barbro, Veljović-Jovanović, Sonja, "Carbon allocation from source to sink leaf tissue in relation to flavonoid biosynthesis in variegated Pelargonium zonale under UV-B radiation and high PAR intensity" in Plant Physiology and Biochemistry, 93 (2015):44-55,
https://doi.org/10.1016/j.plaphy.2015.01.008 .,
Kon_2873 .
20
17
18

Electrochemical versus Spectrophotometric Assessment of Antioxidant Activity of Hop (Humulus lupulus L.) Products and Individual Compounds

Gorjanović, Stanislava; Pastor, Ferenc; Vasic, Radica; Novaković, Miroslav M.; Simonovic, Mladen; Milic, Sonja; Suznjevic, Desanka

(Amer Chemical Soc, Washington, 2013)

TY  - JOUR
AU  - Gorjanović, Stanislava
AU  - Pastor, Ferenc
AU  - Vasic, Radica
AU  - Novaković, Miroslav M.
AU  - Simonovic, Mladen
AU  - Milic, Sonja
AU  - Suznjevic, Desanka
PY  - 2013
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1491
AB  - Antioxidant (AO) activity of extracts of hop cones (Serbian domestic varieties) and commercial hop products (Saaz, Spalter, Spalter select, and Magnum pellets) was determined by parallel application of recently developed direct current (DC) polarographic and widely used DPPH assay. Correlations between 2,2-diphenyl-1-picrylhydrazyl radical (DPPH) scavenging and total phenolics (TPC) determined by the Folin-Ciocalteu assay (FC) (0.99), and between H2O2 scavenging,: (HPS) and humulone content (H) determined by conductometric method (0.94), total resins (TR) (0.85), and hop storage index (HIS) (-0.90), were found statistically significant at p  lt  0.05 level while complete lack of HPS correlation with TPC and DPPH was observed. To obtain an insight into differences between results of AO assays applied, activity of individual compounds, prevalent hop phenolics, and bitter acids was determined. By far superior HPS activity of humulone was followed by catechin, quercetin, xanthohumol, lupulone, and rutin. In contrast, DPPH scavenging activity of phenolics (quercetin  gt  catechin  gt  rutin  gt  xantohumol) was found substantially higher than activity of bitter acids. According to ferric reducing antioxidant power (FRAP) and scavenging of 2,2-azino-bis-3-ethylbenzothiazoline-6-sulfonic acid (ABTS), higher AO activity was ascribed to phenolics, while almost neglecting humulone. Besides reliability, low cost, and an easy-to-handle procedure, an ability to recognize humulone as the major contributor of hop AO activity could allow DC polarographic assay to be applied in analysis of various hop-derived products.
PB  - Amer Chemical Soc, Washington
T2  - Journal of Agricultural and Food Chemistry
T1  - Electrochemical versus Spectrophotometric Assessment of Antioxidant Activity of Hop (Humulus lupulus L.) Products and Individual Compounds
VL  - 61
IS  - 38
SP  - 9089
EP  - 9096
DO  - 10.1021/jf401718z
UR  - Kon_2611
ER  - 
@article{
author = "Gorjanović, Stanislava and Pastor, Ferenc and Vasic, Radica and Novaković, Miroslav M. and Simonovic, Mladen and Milic, Sonja and Suznjevic, Desanka",
year = "2013",
abstract = "Antioxidant (AO) activity of extracts of hop cones (Serbian domestic varieties) and commercial hop products (Saaz, Spalter, Spalter select, and Magnum pellets) was determined by parallel application of recently developed direct current (DC) polarographic and widely used DPPH assay. Correlations between 2,2-diphenyl-1-picrylhydrazyl radical (DPPH) scavenging and total phenolics (TPC) determined by the Folin-Ciocalteu assay (FC) (0.99), and between H2O2 scavenging,: (HPS) and humulone content (H) determined by conductometric method (0.94), total resins (TR) (0.85), and hop storage index (HIS) (-0.90), were found statistically significant at p  lt  0.05 level while complete lack of HPS correlation with TPC and DPPH was observed. To obtain an insight into differences between results of AO assays applied, activity of individual compounds, prevalent hop phenolics, and bitter acids was determined. By far superior HPS activity of humulone was followed by catechin, quercetin, xanthohumol, lupulone, and rutin. In contrast, DPPH scavenging activity of phenolics (quercetin  gt  catechin  gt  rutin  gt  xantohumol) was found substantially higher than activity of bitter acids. According to ferric reducing antioxidant power (FRAP) and scavenging of 2,2-azino-bis-3-ethylbenzothiazoline-6-sulfonic acid (ABTS), higher AO activity was ascribed to phenolics, while almost neglecting humulone. Besides reliability, low cost, and an easy-to-handle procedure, an ability to recognize humulone as the major contributor of hop AO activity could allow DC polarographic assay to be applied in analysis of various hop-derived products.",
publisher = "Amer Chemical Soc, Washington",
journal = "Journal of Agricultural and Food Chemistry",
title = "Electrochemical versus Spectrophotometric Assessment of Antioxidant Activity of Hop (Humulus lupulus L.) Products and Individual Compounds",
volume = "61",
number = "38",
pages = "9089-9096",
doi = "10.1021/jf401718z",
url = "Kon_2611"
}
Gorjanović, S., Pastor, F., Vasic, R., Novaković, M. M., Simonovic, M., Milic, S.,& Suznjevic, D.. (2013). Electrochemical versus Spectrophotometric Assessment of Antioxidant Activity of Hop (Humulus lupulus L.) Products and Individual Compounds. in Journal of Agricultural and Food Chemistry
Amer Chemical Soc, Washington., 61(38), 9089-9096.
https://doi.org/10.1021/jf401718z
Kon_2611
Gorjanović S, Pastor F, Vasic R, Novaković MM, Simonovic M, Milic S, Suznjevic D. Electrochemical versus Spectrophotometric Assessment of Antioxidant Activity of Hop (Humulus lupulus L.) Products and Individual Compounds. in Journal of Agricultural and Food Chemistry. 2013;61(38):9089-9096.
doi:10.1021/jf401718z
Kon_2611 .
Gorjanović, Stanislava, Pastor, Ferenc, Vasic, Radica, Novaković, Miroslav M., Simonovic, Mladen, Milic, Sonja, Suznjevic, Desanka, "Electrochemical versus Spectrophotometric Assessment of Antioxidant Activity of Hop (Humulus lupulus L.) Products and Individual Compounds" in Journal of Agricultural and Food Chemistry, 61, no. 38 (2013):9089-9096,
https://doi.org/10.1021/jf401718z .,
Kon_2611 .
1
19
22
23

Comparative analysis of antioxidant activity of honey of different floral sources using recently developed polarographic and various spectrophotometric assays

Gorjanović, Stanislava; Alvarez-Suarez, Jose Miguel; Novaković, Miroslav M.; Pastor, Ferenc; Pezo, Lato; Battino, Maurizio; Suznjevic, Desanka Z.

(Academic Press Inc Elsevier Science, San Diego, 2013)

TY  - JOUR
AU  - Gorjanović, Stanislava
AU  - Alvarez-Suarez, Jose Miguel
AU  - Novaković, Miroslav M.
AU  - Pastor, Ferenc
AU  - Pezo, Lato
AU  - Battino, Maurizio
AU  - Suznjevic, Desanka Z.
PY  - 2013
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1629
AB  - Hydrogen peroxide scavenging (HPS) activity of honey of different floral sources and its constituents such as predominant honey flavonoids, phenolic acids, amino and organic acids, and carbohydrates have been assessed by direct current (DC) polarographic assay. The assay was based on decrease of anodic current of hydrogen peroxide complex, formed in alkaline solution, at the potential of mercury dissolution. High correlations between honey HPS activity, its total phenolic content (FC-GAE), antioxidant activity measured by four standard methods (DPPH, TEAC, FRAP and ORAC), and also the relative antioxidant capacity index, were obtained. Statistical evaluation by ANOVA and F-test further confirmed the assay validity. The results for individual compounds showed that HPS activity of honey reflects an integrated action of a wide range of constituents, both phenolics and non-phenolics. The polarographic assay applied is a fast, reliable and low cost alternative to spectrophotometric antioxidant assays commonly applied in analysis of honey and can serve as an indicator of honey quality.
PB  - Academic Press Inc Elsevier Science, San Diego
T2  - Journal of Food Composition and Analysis
T1  - Comparative analysis of antioxidant activity of honey of different floral sources using recently developed polarographic and various spectrophotometric assays
VL  - 30
IS  - 1
SP  - 13
EP  - 18
DO  - 10.1016/j.jfca.2012.12.004
UR  - Kon_2460
ER  - 
@article{
author = "Gorjanović, Stanislava and Alvarez-Suarez, Jose Miguel and Novaković, Miroslav M. and Pastor, Ferenc and Pezo, Lato and Battino, Maurizio and Suznjevic, Desanka Z.",
year = "2013",
abstract = "Hydrogen peroxide scavenging (HPS) activity of honey of different floral sources and its constituents such as predominant honey flavonoids, phenolic acids, amino and organic acids, and carbohydrates have been assessed by direct current (DC) polarographic assay. The assay was based on decrease of anodic current of hydrogen peroxide complex, formed in alkaline solution, at the potential of mercury dissolution. High correlations between honey HPS activity, its total phenolic content (FC-GAE), antioxidant activity measured by four standard methods (DPPH, TEAC, FRAP and ORAC), and also the relative antioxidant capacity index, were obtained. Statistical evaluation by ANOVA and F-test further confirmed the assay validity. The results for individual compounds showed that HPS activity of honey reflects an integrated action of a wide range of constituents, both phenolics and non-phenolics. The polarographic assay applied is a fast, reliable and low cost alternative to spectrophotometric antioxidant assays commonly applied in analysis of honey and can serve as an indicator of honey quality.",
publisher = "Academic Press Inc Elsevier Science, San Diego",
journal = "Journal of Food Composition and Analysis",
title = "Comparative analysis of antioxidant activity of honey of different floral sources using recently developed polarographic and various spectrophotometric assays",
volume = "30",
number = "1",
pages = "13-18",
doi = "10.1016/j.jfca.2012.12.004",
url = "Kon_2460"
}
Gorjanović, S., Alvarez-Suarez, J. M., Novaković, M. M., Pastor, F., Pezo, L., Battino, M.,& Suznjevic, D. Z.. (2013). Comparative analysis of antioxidant activity of honey of different floral sources using recently developed polarographic and various spectrophotometric assays. in Journal of Food Composition and Analysis
Academic Press Inc Elsevier Science, San Diego., 30(1), 13-18.
https://doi.org/10.1016/j.jfca.2012.12.004
Kon_2460
Gorjanović S, Alvarez-Suarez JM, Novaković MM, Pastor F, Pezo L, Battino M, Suznjevic DZ. Comparative analysis of antioxidant activity of honey of different floral sources using recently developed polarographic and various spectrophotometric assays. in Journal of Food Composition and Analysis. 2013;30(1):13-18.
doi:10.1016/j.jfca.2012.12.004
Kon_2460 .
Gorjanović, Stanislava, Alvarez-Suarez, Jose Miguel, Novaković, Miroslav M., Pastor, Ferenc, Pezo, Lato, Battino, Maurizio, Suznjevic, Desanka Z., "Comparative analysis of antioxidant activity of honey of different floral sources using recently developed polarographic and various spectrophotometric assays" in Journal of Food Composition and Analysis, 30, no. 1 (2013):13-18,
https://doi.org/10.1016/j.jfca.2012.12.004 .,
Kon_2460 .
65
69
72

Antioxidant Capacity of Teas and Herbal Infusions: Polarographic Assessment

Gorjanović, Stanislava; Komes, Drazenka; Pastor, Ferenc; Belscak-Cvitanovic, Ana; Pezo, Lato; Hecimovic, Ivana; Suznjevic, Desanka

(Amer Chemical Soc, Washington, 2012)

TY  - JOUR
AU  - Gorjanović, Stanislava
AU  - Komes, Drazenka
AU  - Pastor, Ferenc
AU  - Belscak-Cvitanovic, Ana
AU  - Pezo, Lato
AU  - Hecimovic, Ivana
AU  - Suznjevic, Desanka
PY  - 2012
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1533
AB  - Hydrogen peroxide scavenging (HPS) activity of unfermented (green, yellow, and white), partially fermented (oolong), and completely fermented (black) tea (Camellia sinensis), mate (Ilex paraguariensis), and various herbal infusions, as well as individual compounds (flavan-3-ols, flavonols, cinnamic and benzoic acids, and methylxanthines), was assessed by recently developed direct current (DC) polarographic assay. Correlations of tea and herbal infusion HPS activity with total phenolic content determined using the Folin-Ciocalteu assay (FC-GAE) (0.81 and 0.93), ferric reducing/antioxidant power (FRAP) (0.97 and 0.92), 1,1-diphenyl-2-picrylhydrazyl (DPPH) (0.77 and 0.80), and 2,2'-azinobis(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS) scavenging (0.86 and 0.86) were statistically significant. Correlations between relative antioxidant capacity index (RACI), calculated by assigning all applied assays equal weight, and HPS (0.98), FRAP (0.97), ABTS (0.89), and DPPH (0.89) confirmed DC polarographic assay reliability when applied individually. Correlation analysis, ANOVA, and Levene and Tukey's HSD tests unequivocally confirmed this reliable, rapid, and low-cost assay validity, clearly demonstrating its advantages over spectrophotometric assays applied.
PB  - Amer Chemical Soc, Washington
T2  - Journal of Agricultural and Food Chemistry
T1  - Antioxidant Capacity of Teas and Herbal Infusions: Polarographic Assessment
VL  - 60
IS  - 38
SP  - 9573
EP  - 9580
DO  - 10.1021/jf302375t
UR  - Kon_2364
ER  - 
@article{
author = "Gorjanović, Stanislava and Komes, Drazenka and Pastor, Ferenc and Belscak-Cvitanovic, Ana and Pezo, Lato and Hecimovic, Ivana and Suznjevic, Desanka",
year = "2012",
abstract = "Hydrogen peroxide scavenging (HPS) activity of unfermented (green, yellow, and white), partially fermented (oolong), and completely fermented (black) tea (Camellia sinensis), mate (Ilex paraguariensis), and various herbal infusions, as well as individual compounds (flavan-3-ols, flavonols, cinnamic and benzoic acids, and methylxanthines), was assessed by recently developed direct current (DC) polarographic assay. Correlations of tea and herbal infusion HPS activity with total phenolic content determined using the Folin-Ciocalteu assay (FC-GAE) (0.81 and 0.93), ferric reducing/antioxidant power (FRAP) (0.97 and 0.92), 1,1-diphenyl-2-picrylhydrazyl (DPPH) (0.77 and 0.80), and 2,2'-azinobis(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS) scavenging (0.86 and 0.86) were statistically significant. Correlations between relative antioxidant capacity index (RACI), calculated by assigning all applied assays equal weight, and HPS (0.98), FRAP (0.97), ABTS (0.89), and DPPH (0.89) confirmed DC polarographic assay reliability when applied individually. Correlation analysis, ANOVA, and Levene and Tukey's HSD tests unequivocally confirmed this reliable, rapid, and low-cost assay validity, clearly demonstrating its advantages over spectrophotometric assays applied.",
publisher = "Amer Chemical Soc, Washington",
journal = "Journal of Agricultural and Food Chemistry",
title = "Antioxidant Capacity of Teas and Herbal Infusions: Polarographic Assessment",
volume = "60",
number = "38",
pages = "9573-9580",
doi = "10.1021/jf302375t",
url = "Kon_2364"
}
Gorjanović, S., Komes, D., Pastor, F., Belscak-Cvitanovic, A., Pezo, L., Hecimovic, I.,& Suznjevic, D.. (2012). Antioxidant Capacity of Teas and Herbal Infusions: Polarographic Assessment. in Journal of Agricultural and Food Chemistry
Amer Chemical Soc, Washington., 60(38), 9573-9580.
https://doi.org/10.1021/jf302375t
Kon_2364
Gorjanović S, Komes D, Pastor F, Belscak-Cvitanovic A, Pezo L, Hecimovic I, Suznjevic D. Antioxidant Capacity of Teas and Herbal Infusions: Polarographic Assessment. in Journal of Agricultural and Food Chemistry. 2012;60(38):9573-9580.
doi:10.1021/jf302375t
Kon_2364 .
Gorjanović, Stanislava, Komes, Drazenka, Pastor, Ferenc, Belscak-Cvitanovic, Ana, Pezo, Lato, Hecimovic, Ivana, Suznjevic, Desanka, "Antioxidant Capacity of Teas and Herbal Infusions: Polarographic Assessment" in Journal of Agricultural and Food Chemistry, 60, no. 38 (2012):9573-9580,
https://doi.org/10.1021/jf302375t .,
Kon_2364 .
1
51
58
60

Polarographic study of hydrogen peroxide anodic current and its application to antioxidant activity determination

Suznjevic, Desanka Z.; Pastor, Ferenc; Gorjanović, Stanislava

(Elsevier Science Bv, Amsterdam, 2011)

TY  - JOUR
AU  - Suznjevic, Desanka Z.
AU  - Pastor, Ferenc
AU  - Gorjanović, Stanislava
PY  - 2011
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1192
AB  - Behavior of hydrogen peroxide in alkaline medium has been studied by direct current (DC) polarography with dropping mercury electrode (DME) aiming to apply it in antioxidant (AO) activity determination. Development of a peroxide anodic current having form of a peak, instead of common polarographic wave, has been investigated. As a base for this investigation the interaction of H(2)O(2) with anodically dissolved mercury was followed. Formation of mercury complex [Hg(O(2)H)(OH)] has been confirmed. The relevant experimental conditions, such as temperature, concentration and pH dependence, as well as time stability of hydrogen peroxide anodic current, have been assessed. Development of an AO assay based on decrease of anodic current of hydrogen peroxide in the presence of antioxidants (AOs) has been described. Under optimized working conditions, a series of benzoic acids along with corresponding cinnamate analogues have been tested for hydrogen peroxide scavenging activity. In addition, the assay versatility has been confirmed on various complex samples. (C) 2011 Elsevier B.V. All rights reserved.
PB  - Elsevier Science Bv, Amsterdam
T2  - Talanta
T1  - Polarographic study of hydrogen peroxide anodic current and its application to antioxidant activity determination
VL  - 85
IS  - 3
SP  - 1398
EP  - 1403
DO  - 10.1016/j.talanta.2011.06.039
UR  - Kon_2214
ER  - 
@article{
author = "Suznjevic, Desanka Z. and Pastor, Ferenc and Gorjanović, Stanislava",
year = "2011",
abstract = "Behavior of hydrogen peroxide in alkaline medium has been studied by direct current (DC) polarography with dropping mercury electrode (DME) aiming to apply it in antioxidant (AO) activity determination. Development of a peroxide anodic current having form of a peak, instead of common polarographic wave, has been investigated. As a base for this investigation the interaction of H(2)O(2) with anodically dissolved mercury was followed. Formation of mercury complex [Hg(O(2)H)(OH)] has been confirmed. The relevant experimental conditions, such as temperature, concentration and pH dependence, as well as time stability of hydrogen peroxide anodic current, have been assessed. Development of an AO assay based on decrease of anodic current of hydrogen peroxide in the presence of antioxidants (AOs) has been described. Under optimized working conditions, a series of benzoic acids along with corresponding cinnamate analogues have been tested for hydrogen peroxide scavenging activity. In addition, the assay versatility has been confirmed on various complex samples. (C) 2011 Elsevier B.V. All rights reserved.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Talanta",
title = "Polarographic study of hydrogen peroxide anodic current and its application to antioxidant activity determination",
volume = "85",
number = "3",
pages = "1398-1403",
doi = "10.1016/j.talanta.2011.06.039",
url = "Kon_2214"
}
Suznjevic, D. Z., Pastor, F.,& Gorjanović, S.. (2011). Polarographic study of hydrogen peroxide anodic current and its application to antioxidant activity determination. in Talanta
Elsevier Science Bv, Amsterdam., 85(3), 1398-1403.
https://doi.org/10.1016/j.talanta.2011.06.039
Kon_2214
Suznjevic DZ, Pastor F, Gorjanović S. Polarographic study of hydrogen peroxide anodic current and its application to antioxidant activity determination. in Talanta. 2011;85(3):1398-1403.
doi:10.1016/j.talanta.2011.06.039
Kon_2214 .
Suznjevic, Desanka Z., Pastor, Ferenc, Gorjanović, Stanislava, "Polarographic study of hydrogen peroxide anodic current and its application to antioxidant activity determination" in Talanta, 85, no. 3 (2011):1398-1403,
https://doi.org/10.1016/j.talanta.2011.06.039 .,
Kon_2214 .
31
36
36

A Polarographic Study of Chlorogenic Acid and Its Interaction with Some Heavy Metal Ions

Milic, Sonja Z.; Potkonjak, Nebojsa I.; Gorjanović, Stanislava; Veljović-Jovanović, Sonja; Pastor, Ferenc; Suznjevic, Desanka Z.

(Wiley-Blackwell, Malden, 2011)

TY  - JOUR
AU  - Milic, Sonja Z.
AU  - Potkonjak, Nebojsa I.
AU  - Gorjanović, Stanislava
AU  - Veljović-Jovanović, Sonja
AU  - Pastor, Ferenc
AU  - Suznjevic, Desanka Z.
PY  - 2011
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1232
AB  - The behavior of chlorogenic acid (CGA) and its interaction with Hg(II), Pb(II), Cu(II), Cd(II) and Zn(II) has been studied using direct current (DC) and differential-pulse polarography (DPP). Adsorptive and kinetic/catalytic anodic waves of CGA have been detected at -0.02 and -0.18 V vs. SCE, respectively; Hg(I)-CGA surface disproportionation has been assumed. Reduction of Hg(II)-ions, added in the buffered solution of CGA (pH 7.5), occurs rather than complexation, while the complex forming ability of CGA towards Pb(II) and Cu(II) has been observed. Stoichiometry 1?:?1 for Pb(II)-CGA, and 1?:?1 and 1?:?2 for Cu(II)-CGA has been established applying Jobs method of continuous variation on DPP data. UV-vis spectrophotometric measurements additionally confirmed the existence and stoichiometry of Cu(II) complexes.
PB  - Wiley-Blackwell, Malden
T2  - Electroanalysis
T1  - A Polarographic Study of Chlorogenic Acid and Its Interaction with Some Heavy Metal Ions
VL  - 23
IS  - 12
SP  - 2935
EP  - 2940
DO  - 10.1002/elan.201100476
UR  - Kon_2254
ER  - 
@article{
author = "Milic, Sonja Z. and Potkonjak, Nebojsa I. and Gorjanović, Stanislava and Veljović-Jovanović, Sonja and Pastor, Ferenc and Suznjevic, Desanka Z.",
year = "2011",
abstract = "The behavior of chlorogenic acid (CGA) and its interaction with Hg(II), Pb(II), Cu(II), Cd(II) and Zn(II) has been studied using direct current (DC) and differential-pulse polarography (DPP). Adsorptive and kinetic/catalytic anodic waves of CGA have been detected at -0.02 and -0.18 V vs. SCE, respectively; Hg(I)-CGA surface disproportionation has been assumed. Reduction of Hg(II)-ions, added in the buffered solution of CGA (pH 7.5), occurs rather than complexation, while the complex forming ability of CGA towards Pb(II) and Cu(II) has been observed. Stoichiometry 1?:?1 for Pb(II)-CGA, and 1?:?1 and 1?:?2 for Cu(II)-CGA has been established applying Jobs method of continuous variation on DPP data. UV-vis spectrophotometric measurements additionally confirmed the existence and stoichiometry of Cu(II) complexes.",
publisher = "Wiley-Blackwell, Malden",
journal = "Electroanalysis",
title = "A Polarographic Study of Chlorogenic Acid and Its Interaction with Some Heavy Metal Ions",
volume = "23",
number = "12",
pages = "2935-2940",
doi = "10.1002/elan.201100476",
url = "Kon_2254"
}
Milic, S. Z., Potkonjak, N. I., Gorjanović, S., Veljović-Jovanović, S., Pastor, F.,& Suznjevic, D. Z.. (2011). A Polarographic Study of Chlorogenic Acid and Its Interaction with Some Heavy Metal Ions. in Electroanalysis
Wiley-Blackwell, Malden., 23(12), 2935-2940.
https://doi.org/10.1002/elan.201100476
Kon_2254
Milic SZ, Potkonjak NI, Gorjanović S, Veljović-Jovanović S, Pastor F, Suznjevic DZ. A Polarographic Study of Chlorogenic Acid and Its Interaction with Some Heavy Metal Ions. in Electroanalysis. 2011;23(12):2935-2940.
doi:10.1002/elan.201100476
Kon_2254 .
Milic, Sonja Z., Potkonjak, Nebojsa I., Gorjanović, Stanislava, Veljović-Jovanović, Sonja, Pastor, Ferenc, Suznjevic, Desanka Z., "A Polarographic Study of Chlorogenic Acid and Its Interaction with Some Heavy Metal Ions" in Electroanalysis, 23, no. 12 (2011):2935-2940,
https://doi.org/10.1002/elan.201100476 .,
Kon_2254 .
14
16
16

Determination of Chloramphenicol by Differential Pulse Voltammetry at Carbon Paste Electrodes - the Use of Sodium Sulfite for Removal of Oxygen from Electrode Surface

Pastor, Ferenc; Dejmkova, Hana; Zima, Jiri; Barek, Jiri

(Inst Organic Chem And Biochem, Prague 6, 2011)

TY  - JOUR
AU  - Pastor, Ferenc
AU  - Dejmkova, Hana
AU  - Zima, Jiri
AU  - Barek, Jiri
PY  - 2011
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1334
AB  - The possibility of determination of chloramphenicol by differential pulse voltammetry at four different carbon paste electrodes, in the full pH range (2-12) of Britton-Robinson (BR) buffer was investigated. Electrodes were prepared by mixing spectroscopic graphite powder or glassy carbon microbeads with mineral oil (Nujol) or tricresyl phosphate. Under optimal conditions (BR buffer pH 12, the electrode prepared from glassy carbon microbeads and tricresyl phosphate), linear calibration graph was obtained only in 10-5 M chloramphenicol concentration range. Determination of lower concentrations of chloramphenicol was complicated by irreproducible peak of oxygen from the carbon paste which overlapped with peak of chloramphenicol. Addition of sodium sulfite removed the oxygen peak without influence on the peak of chloramphenicol. Under optimal conditions (electrode paste made from glassy carbon microbeads, BR buffer pH 10 and 0.5 M sodium sulfite), straight calibration line was obtained in the 10(-6) and 10(-5) M chloramphenicol concentration range. Limit of determination was 5 x 10(-7) mol/l.
PB  - Inst Organic Chem And Biochem, Prague 6
T2  - Collection of Czechoslovak Chemical Communications
T1  - Determination of Chloramphenicol by Differential Pulse Voltammetry at Carbon Paste Electrodes - the Use of Sodium Sulfite for Removal of Oxygen from  Electrode Surface
VL  - 76
IS  - 5
SP  - 383
EP  - 397
DO  - 10.1135/cccc2011011
UR  - Kon_2172
ER  - 
@article{
author = "Pastor, Ferenc and Dejmkova, Hana and Zima, Jiri and Barek, Jiri",
year = "2011",
abstract = "The possibility of determination of chloramphenicol by differential pulse voltammetry at four different carbon paste electrodes, in the full pH range (2-12) of Britton-Robinson (BR) buffer was investigated. Electrodes were prepared by mixing spectroscopic graphite powder or glassy carbon microbeads with mineral oil (Nujol) or tricresyl phosphate. Under optimal conditions (BR buffer pH 12, the electrode prepared from glassy carbon microbeads and tricresyl phosphate), linear calibration graph was obtained only in 10-5 M chloramphenicol concentration range. Determination of lower concentrations of chloramphenicol was complicated by irreproducible peak of oxygen from the carbon paste which overlapped with peak of chloramphenicol. Addition of sodium sulfite removed the oxygen peak without influence on the peak of chloramphenicol. Under optimal conditions (electrode paste made from glassy carbon microbeads, BR buffer pH 10 and 0.5 M sodium sulfite), straight calibration line was obtained in the 10(-6) and 10(-5) M chloramphenicol concentration range. Limit of determination was 5 x 10(-7) mol/l.",
publisher = "Inst Organic Chem And Biochem, Prague 6",
journal = "Collection of Czechoslovak Chemical Communications",
title = "Determination of Chloramphenicol by Differential Pulse Voltammetry at Carbon Paste Electrodes - the Use of Sodium Sulfite for Removal of Oxygen from  Electrode Surface",
volume = "76",
number = "5",
pages = "383-397",
doi = "10.1135/cccc2011011",
url = "Kon_2172"
}
Pastor, F., Dejmkova, H., Zima, J.,& Barek, J.. (2011). Determination of Chloramphenicol by Differential Pulse Voltammetry at Carbon Paste Electrodes - the Use of Sodium Sulfite for Removal of Oxygen from  Electrode Surface. in Collection of Czechoslovak Chemical Communications
Inst Organic Chem And Biochem, Prague 6., 76(5), 383-397.
https://doi.org/10.1135/cccc2011011
Kon_2172
Pastor F, Dejmkova H, Zima J, Barek J. Determination of Chloramphenicol by Differential Pulse Voltammetry at Carbon Paste Electrodes - the Use of Sodium Sulfite for Removal of Oxygen from  Electrode Surface. in Collection of Czechoslovak Chemical Communications. 2011;76(5):383-397.
doi:10.1135/cccc2011011
Kon_2172 .
Pastor, Ferenc, Dejmkova, Hana, Zima, Jiri, Barek, Jiri, "Determination of Chloramphenicol by Differential Pulse Voltammetry at Carbon Paste Electrodes - the Use of Sodium Sulfite for Removal of Oxygen from  Electrode Surface" in Collection of Czechoslovak Chemical Communications, 76, no. 5 (2011):383-397,
https://doi.org/10.1135/cccc2011011 .,
Kon_2172 .
2
3
3

Changes of Hydrogen Peroxide and Radical-Scavenging Activity of Raspberry during Osmotic, Convective, and Freeze-Drying

Novaković, Miroslav M.; Stevanovic, Snezana M.; Gorjanović, Stanislava; Jovanović, Predrag M.; Tešević, Vele; Janković, Miodrag A.; Suznjevic, Desanka Z.

(Wiley-Blackwell, Malden, 2011)

TY  - JOUR
AU  - Novaković, Miroslav M.
AU  - Stevanovic, Snezana M.
AU  - Gorjanović, Stanislava
AU  - Jovanović, Predrag M.
AU  - Tešević, Vele
AU  - Janković, Miodrag A.
AU  - Suznjevic, Desanka Z.
PY  - 2011
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1333
AB  - This study was conducted to investigate the influence of different drying treatments on antioxidant (AO) activity and phenolic content of raspberry (Rubus idaeus), cultivar Willamette. Whole raspberry fruits were dried convectively (air-drying), osmotically, and freeze-dried. Acetone-water extracts of fresh and dried raspberries were assessed for total phenolic content by standard Folin-Ciocalteau method. Two AO assays were applied, a recently developed direct current (DC) polarographic assay based on decrease of anodic oxidation current of hydrogen peroxide and widely used radical scavenge against the 1,1-diphenyl-2-picrylhydrazyl (DPPH). Strong correlation has been obtained between both AO assays and total phenolic content. In addition, some individual phenolic compounds present in raspberry have been assessed using DPPH and DC polarographic assay. Comparison and evaluation of drying methods has been based on preservation of AO activity and total phenolic content. Obtained results confirmed superiority of freeze-drying; convective drying caused slight changes while osmotic dehydration showed a significant decrease of phenolic compounds and AO activity. Practical Application Optimization of drying process could be based on surveying of AO activity.
PB  - Wiley-Blackwell, Malden
T2  - Journal of Food Science
T1  - Changes of Hydrogen Peroxide and Radical-Scavenging Activity of Raspberry during Osmotic, Convective, and Freeze-Drying
VL  - 76
IS  - 4
DO  - 10.1111/j.1750-3841.2011.02144.x
UR  - Kon_2171
ER  - 
@article{
author = "Novaković, Miroslav M. and Stevanovic, Snezana M. and Gorjanović, Stanislava and Jovanović, Predrag M. and Tešević, Vele and Janković, Miodrag A. and Suznjevic, Desanka Z.",
year = "2011",
abstract = "This study was conducted to investigate the influence of different drying treatments on antioxidant (AO) activity and phenolic content of raspberry (Rubus idaeus), cultivar Willamette. Whole raspberry fruits were dried convectively (air-drying), osmotically, and freeze-dried. Acetone-water extracts of fresh and dried raspberries were assessed for total phenolic content by standard Folin-Ciocalteau method. Two AO assays were applied, a recently developed direct current (DC) polarographic assay based on decrease of anodic oxidation current of hydrogen peroxide and widely used radical scavenge against the 1,1-diphenyl-2-picrylhydrazyl (DPPH). Strong correlation has been obtained between both AO assays and total phenolic content. In addition, some individual phenolic compounds present in raspberry have been assessed using DPPH and DC polarographic assay. Comparison and evaluation of drying methods has been based on preservation of AO activity and total phenolic content. Obtained results confirmed superiority of freeze-drying; convective drying caused slight changes while osmotic dehydration showed a significant decrease of phenolic compounds and AO activity. Practical Application Optimization of drying process could be based on surveying of AO activity.",
publisher = "Wiley-Blackwell, Malden",
journal = "Journal of Food Science",
title = "Changes of Hydrogen Peroxide and Radical-Scavenging Activity of Raspberry during Osmotic, Convective, and Freeze-Drying",
volume = "76",
number = "4",
doi = "10.1111/j.1750-3841.2011.02144.x",
url = "Kon_2171"
}
Novaković, M. M., Stevanovic, S. M., Gorjanović, S., Jovanović, P. M., Tešević, V., Janković, M. A.,& Suznjevic, D. Z.. (2011). Changes of Hydrogen Peroxide and Radical-Scavenging Activity of Raspberry during Osmotic, Convective, and Freeze-Drying. in Journal of Food Science
Wiley-Blackwell, Malden., 76(4).
https://doi.org/10.1111/j.1750-3841.2011.02144.x
Kon_2171
Novaković MM, Stevanovic SM, Gorjanović S, Jovanović PM, Tešević V, Janković MA, Suznjevic DZ. Changes of Hydrogen Peroxide and Radical-Scavenging Activity of Raspberry during Osmotic, Convective, and Freeze-Drying. in Journal of Food Science. 2011;76(4).
doi:10.1111/j.1750-3841.2011.02144.x
Kon_2171 .
Novaković, Miroslav M., Stevanovic, Snezana M., Gorjanović, Stanislava, Jovanović, Predrag M., Tešević, Vele, Janković, Miodrag A., Suznjevic, Desanka Z., "Changes of Hydrogen Peroxide and Radical-Scavenging Activity of Raspberry during Osmotic, Convective, and Freeze-Drying" in Journal of Food Science, 76, no. 4 (2011),
https://doi.org/10.1111/j.1750-3841.2011.02144.x .,
Kon_2171 .
18
19
24