Content of bioactive components in small and stone fruits as affected by cultivar specificities and growing conditions, and obtaining biologically valuable products by improved and newly developed technologies

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Content of bioactive components in small and stone fruits as affected by cultivar specificities and growing conditions, and obtaining biologically valuable products by improved and newly developed technologies (en)
Утицај сорте и услова гајења на садржај биоактивних компоненти јагодастог и коштичавог воћа и добијање биолошки вредних производа побољшаним и новим технологијама (sr)
Uticaj sorte i uslova gajenja na sadržaj bioaktivnih komponenti jagodastog i koštičavog voća i dobijanje biološki vrednih proizvoda poboljšanim i novim tehnologijama (sr_RS)
Authors

Publications

Serbian aromatized wine “Bermet”: Electrochemical, chemiluminescent and spectrophotometric determination of antioxidant activity

Gorjanović, Stanislava; Pastor, Ferenc; Loupassaki, Sofia; Veljović, Mile S.; Vukosavljević, Predrag V.; Zlatanović, Snežana; Pezo, Lato

(Journal of the Serbian Chemical Society, 2020)

TY  - JOUR
AU  - Gorjanović, Stanislava
AU  - Pastor, Ferenc
AU  - Loupassaki, Sofia
AU  - Veljović, Mile S.
AU  - Vukosavljević, Predrag V.
AU  - Zlatanović, Snežana
AU  - Pezo, Lato
PY  - 2020
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/4058
AB  - Serbian aromatized wine “Bermet” from grapes grown on Fruška Gora Mountain has been in production since the 15th century. Ten commercial Bermets produced according to the traditional procedure by different manufacturers, and six prepared within the scope of this study were assessed for antioxidant (AO) activity using electrochemical, chemiluminescent and spectrophotometric AO assays. Direct current polarographic assay based on the decrease of anodic current of [hydrogen(peroxido)(1-)]hydroxidomercury(II) complex formation in alkaline H2O2 solution at potential of mercury oxidation, chemiluminescent H2O2 scavenging assay, as well as commonly used spectrophotometric assays (2,2’-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid (ABTS) based Trolox equivalent antioxidant capacity (TEAC), 2,2-diphenyl-1-picrylhydrazyl (DPPH) and ferric reducing antioxidant power (FRAP)) were used. Total phenolic content (TPC) was determined by Folin–Ciocalteu assay. The results obtained were correlated using regression analysis, ANOVA and F-test. An integrated approach to AO capacity determination allowed a more comprehensive comparison between samples. The approach is based on the introduction of the relative antioxidant capacity index, calculated by assigning each AO assay equal weight, and by PCA analysis. In addition, the introduction of phenolic antioxidant coefficients, calculated as the ratio between individual AO capacity and TPC, enabled a better understanding of their relation.
PB  - Journal of the Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Serbian aromatized wine “Bermet”: Electrochemical, chemiluminescent and spectrophotometric determination of antioxidant activity
VL  - 85
IS  - 4
SP  - 517
EP  - 529
DO  - 10.2298/JSC190404139G
ER  - 
@article{
author = "Gorjanović, Stanislava and Pastor, Ferenc and Loupassaki, Sofia and Veljović, Mile S. and Vukosavljević, Predrag V. and Zlatanović, Snežana and Pezo, Lato",
year = "2020",
abstract = "Serbian aromatized wine “Bermet” from grapes grown on Fruška Gora Mountain has been in production since the 15th century. Ten commercial Bermets produced according to the traditional procedure by different manufacturers, and six prepared within the scope of this study were assessed for antioxidant (AO) activity using electrochemical, chemiluminescent and spectrophotometric AO assays. Direct current polarographic assay based on the decrease of anodic current of [hydrogen(peroxido)(1-)]hydroxidomercury(II) complex formation in alkaline H2O2 solution at potential of mercury oxidation, chemiluminescent H2O2 scavenging assay, as well as commonly used spectrophotometric assays (2,2’-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid (ABTS) based Trolox equivalent antioxidant capacity (TEAC), 2,2-diphenyl-1-picrylhydrazyl (DPPH) and ferric reducing antioxidant power (FRAP)) were used. Total phenolic content (TPC) was determined by Folin–Ciocalteu assay. The results obtained were correlated using regression analysis, ANOVA and F-test. An integrated approach to AO capacity determination allowed a more comprehensive comparison between samples. The approach is based on the introduction of the relative antioxidant capacity index, calculated by assigning each AO assay equal weight, and by PCA analysis. In addition, the introduction of phenolic antioxidant coefficients, calculated as the ratio between individual AO capacity and TPC, enabled a better understanding of their relation.",
publisher = "Journal of the Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Serbian aromatized wine “Bermet”: Electrochemical, chemiluminescent and spectrophotometric determination of antioxidant activity",
volume = "85",
number = "4",
pages = "517-529",
doi = "10.2298/JSC190404139G"
}
Gorjanović, S., Pastor, F., Loupassaki, S., Veljović, M. S., Vukosavljević, P. V., Zlatanović, S.,& Pezo, L.. (2020). Serbian aromatized wine “Bermet”: Electrochemical, chemiluminescent and spectrophotometric determination of antioxidant activity. in Journal of the Serbian Chemical Society
Journal of the Serbian Chemical Society., 85(4), 517-529.
https://doi.org/10.2298/JSC190404139G
Gorjanović S, Pastor F, Loupassaki S, Veljović MS, Vukosavljević PV, Zlatanović S, Pezo L. Serbian aromatized wine “Bermet”: Electrochemical, chemiluminescent and spectrophotometric determination of antioxidant activity. in Journal of the Serbian Chemical Society. 2020;85(4):517-529.
doi:10.2298/JSC190404139G .
Gorjanović, Stanislava, Pastor, Ferenc, Loupassaki, Sofia, Veljović, Mile S., Vukosavljević, Predrag V., Zlatanović, Snežana, Pezo, Lato, "Serbian aromatized wine “Bermet”: Electrochemical, chemiluminescent and spectrophotometric determination of antioxidant activity" in Journal of the Serbian Chemical Society, 85, no. 4 (2020):517-529,
https://doi.org/10.2298/JSC190404139G . .
1
1
1

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 .
11
17
10
16

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

Petrović, Marija S.; Sužnjević, 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  - Sužnjević, 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 Sužnjević, 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., Sužnjević, 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, Sužnjević 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., Sužnjević, 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 .
19
16
21

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; Sužnjević, 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  - Sužnjević, 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
UR  - https://hdl.handle.net/21.15107/rcub_cherry_1919
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 Sužnjević, 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, https://hdl.handle.net/21.15107/rcub_cherry_1919"
}
Lalicic-Petronijevic, J., Komes, D., Gorjanović, S., Belscak-Cvitanovic, A., Pezo, L., Pastor, F., Ostojić, S. B., Popov-Raljic, J.,& Sužnjević, 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, Sužnjević 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, Sužnjević, 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 .
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Kinetics of blackberry and raspberry seed oils oxidation by DSC

Micić, Darko M.; Ostojić, Sanja B.; Simonovic, Mladen B.; Krstić, Gordana B.; Pezo, Lato; Simonovic, Branislav R.

(Elsevier Science Bv, Amsterdam, 2015)

TY  - JOUR
AU  - Micić, Darko M.
AU  - Ostojić, Sanja B.
AU  - Simonovic, Mladen B.
AU  - Krstić, Gordana B.
AU  - Pezo, Lato
AU  - Simonovic, Branislav R.
PY  - 2015
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1658
AB  - Differential scanning calorimetry (DSC) technique is used to study the oxidative stability of blackberry (R. fruticosus L., Cacak Thornless cultivar) and raspberry (Rubus idaeus L., Willamette cultivar) seed oils. Oxidative stability of the oil samples was studied in an oxygen atmosphere, isothermally at eight temperatures, T-i (110, 115, 120, 125, 130, 135, 140 and 145 degrees C) and non-isothermally at six heating rates, beta(i) (2, 5, 7.5, 10, 15, 20 degrees C/min). Fatty acid composition was analyzed by gas chromatography (GC MS). High content of essential fatty acids (linoleic and linolenic acid) was detected in both oils. Reaction rate constants (k) and activation energies (E-a) of oil oxidation process were calculated for both isothermal and non-isothermal conditions. Blackberry seed oil was shown to have greater oxidative stability than raspberry seed oil because of a smaller quantity of linolenic fatty acid. (C) 2014 Elsevier B.V. All rights reserved.
PB  - Elsevier Science Bv, Amsterdam
T2  - Thermochimica Acta
T1  - Kinetics of blackberry and raspberry seed oils oxidation by DSC
VL  - 601
SP  - 39
EP  - 44
DO  - 10.1016/j.tca.2014.12.018
UR  - Kon_2804
ER  - 
@article{
author = "Micić, Darko M. and Ostojić, Sanja B. and Simonovic, Mladen B. and Krstić, Gordana B. and Pezo, Lato and Simonovic, Branislav R.",
year = "2015",
abstract = "Differential scanning calorimetry (DSC) technique is used to study the oxidative stability of blackberry (R. fruticosus L., Cacak Thornless cultivar) and raspberry (Rubus idaeus L., Willamette cultivar) seed oils. Oxidative stability of the oil samples was studied in an oxygen atmosphere, isothermally at eight temperatures, T-i (110, 115, 120, 125, 130, 135, 140 and 145 degrees C) and non-isothermally at six heating rates, beta(i) (2, 5, 7.5, 10, 15, 20 degrees C/min). Fatty acid composition was analyzed by gas chromatography (GC MS). High content of essential fatty acids (linoleic and linolenic acid) was detected in both oils. Reaction rate constants (k) and activation energies (E-a) of oil oxidation process were calculated for both isothermal and non-isothermal conditions. Blackberry seed oil was shown to have greater oxidative stability than raspberry seed oil because of a smaller quantity of linolenic fatty acid. (C) 2014 Elsevier B.V. All rights reserved.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Thermochimica Acta",
title = "Kinetics of blackberry and raspberry seed oils oxidation by DSC",
volume = "601",
pages = "39-44",
doi = "10.1016/j.tca.2014.12.018",
url = "Kon_2804"
}
Micić, D. M., Ostojić, S. B., Simonovic, M. B., Krstić, G. B., Pezo, L.,& Simonovic, B. R.. (2015). Kinetics of blackberry and raspberry seed oils oxidation by DSC. in Thermochimica Acta
Elsevier Science Bv, Amsterdam., 601, 39-44.
https://doi.org/10.1016/j.tca.2014.12.018
Kon_2804
Micić DM, Ostojić SB, Simonovic MB, Krstić GB, Pezo L, Simonovic BR. Kinetics of blackberry and raspberry seed oils oxidation by DSC. in Thermochimica Acta. 2015;601:39-44.
doi:10.1016/j.tca.2014.12.018
Kon_2804 .
Micić, Darko M., Ostojić, Sanja B., Simonovic, Mladen B., Krstić, Gordana B., Pezo, Lato, Simonovic, Branislav R., "Kinetics of blackberry and raspberry seed oils oxidation by DSC" in Thermochimica Acta, 601 (2015):39-44,
https://doi.org/10.1016/j.tca.2014.12.018 .,
Kon_2804 .
40
38
41

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

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

(Electrochemical Soc Inc, Pennington, 2015)

TY  - JOUR
AU  - Sužnjević, 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 = "Sužnjević, 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"
}
Sužnjević, 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
Sužnjević 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 .
Sužnjević, 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 .
5
4
6

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

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; Sužnjević, 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  - Sužnjević, 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 Sužnjević, 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.,& Sužnjević, 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, Sužnjević 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, Sužnjević, 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 .
24
23
28

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 .
75
72
80

Volatile compounds in Medlar fruit (Mespilus germanica L.) at two ripening stages

Veličković, Milovan; Radivojevic, Dragan D.; Oparnica, Cedo D.; Nikićević, Ninoslav; Živković, Marijana B.; Đorđević, Neda O.; Vajs, Vlatka; Tešević, Vele

(Assoc Chemists & Chemical Engineers Of Serbia, Belgrade, 2013)

TY  - JOUR
AU  - Veličković, Milovan
AU  - Radivojevic, Dragan D.
AU  - Oparnica, Cedo D.
AU  - Nikićević, Ninoslav
AU  - Živković, Marijana B.
AU  - Đorđević, Neda O.
AU  - Vajs, Vlatka
AU  - Tešević, Vele
PY  - 2013
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1401
AB  - Medlar is the fruit of Mespilus germanica L. in the family of Rosaceae. The fruit can be eaten only if "bletted" (softened by frost or longer storage). The effect of the maturation stages on the volatile compounds of the medlar fruit was investigated during two different stages. Volatile flavour substances were isolated from the minced pulp of unripe and full ripe medlar fruits by simultaneous steam distillation extraction (SDE) with methylene chloride as the extracting solvent. The concentrate was analysed by GC-FID-MS. Hexanoic and hexadecanoic acids were the predominant acids, hexanal and (E)-2-hexenal were the predominant aldehydes, (Z)-3-hexenol and hexanol were the predominant alcohols, with p-cymene, terpinen-4-ol, and gamma-terpinene (the terpenes responsible for the characteristic medlar flavour) being also present. The C6 aliphatic compounds, such as hexanal and (E)-2-hexenal, were observed as the major volatile constituents in the green stage. In contrast, hexanol and (Z)-3-hexenol were the main volatiles in ripe fruits.
AB  - Mušmula (Mespilus germanica L) je voće iz porodice ruža (Rosaceae). Zeleni plodovi mušmule nisu jestivi već treba da ugnile (omekšaju usled mraza ili tokom čuvanja) pre nego što se koriste u ishrani. Efekat procesa sazrevanja na isparljive komponente ploda mušmule ispitivan je u dve različite faze njegove zrelosti. Isparljiva jedinjenja su izolovana iz izmrvljene pulpe nezrelih i zrelih plodova mušmule pomoću simultane destilacije vodenom parom i ekstrakcije metilen-hloridom. Koncentrovani uzorak je analiziran kombinacijom metoda GC-FID-MS. Heksanska i palmitinska kiselina su najzastupljenije kiseline, heksanal i (E)-2-heksenal su najzastupljeniji aldehidi, (Z)-3-heksenol i heksanol su najzastupljeniji alkoholi i p-cimen, terpinen-4-ol i γ-terpinen, terpeni odgovorni za karakterističnu aromu ploda mušmule, takođe su prisutni. C6 alifatična jedinjenja, kao što su heksanal i (E)-2-heksenal su nađeni kao glavne isparljive komponente zelenih mušmula. Za razliku od njih, heksanol, (Z)-3-heksenol su glavne komponente zrelih plodova mušmule.
PB  - Assoc Chemists & Chemical Engineers Of Serbia, Belgrade
T2  - Hemijska industrija
T1  - Volatile compounds in Medlar fruit (Mespilus germanica L.) at two ripening stages
T1  - Isparljiva jedinjenja iz ploda mušmule (Mespilus germanica L.) u dve faze zrenja
VL  - 67
IS  - 3
SP  - 437
EP  - 441
DO  - 10.2298/HEMIND120611085V
UR  - Kon_2521
ER  - 
@article{
author = "Veličković, Milovan and Radivojevic, Dragan D. and Oparnica, Cedo D. and Nikićević, Ninoslav and Živković, Marijana B. and Đorđević, Neda O. and Vajs, Vlatka and Tešević, Vele",
year = "2013",
abstract = "Medlar is the fruit of Mespilus germanica L. in the family of Rosaceae. The fruit can be eaten only if "bletted" (softened by frost or longer storage). The effect of the maturation stages on the volatile compounds of the medlar fruit was investigated during two different stages. Volatile flavour substances were isolated from the minced pulp of unripe and full ripe medlar fruits by simultaneous steam distillation extraction (SDE) with methylene chloride as the extracting solvent. The concentrate was analysed by GC-FID-MS. Hexanoic and hexadecanoic acids were the predominant acids, hexanal and (E)-2-hexenal were the predominant aldehydes, (Z)-3-hexenol and hexanol were the predominant alcohols, with p-cymene, terpinen-4-ol, and gamma-terpinene (the terpenes responsible for the characteristic medlar flavour) being also present. The C6 aliphatic compounds, such as hexanal and (E)-2-hexenal, were observed as the major volatile constituents in the green stage. In contrast, hexanol and (Z)-3-hexenol were the main volatiles in ripe fruits., Mušmula (Mespilus germanica L) je voće iz porodice ruža (Rosaceae). Zeleni plodovi mušmule nisu jestivi već treba da ugnile (omekšaju usled mraza ili tokom čuvanja) pre nego što se koriste u ishrani. Efekat procesa sazrevanja na isparljive komponente ploda mušmule ispitivan je u dve različite faze njegove zrelosti. Isparljiva jedinjenja su izolovana iz izmrvljene pulpe nezrelih i zrelih plodova mušmule pomoću simultane destilacije vodenom parom i ekstrakcije metilen-hloridom. Koncentrovani uzorak je analiziran kombinacijom metoda GC-FID-MS. Heksanska i palmitinska kiselina su najzastupljenije kiseline, heksanal i (E)-2-heksenal su najzastupljeniji aldehidi, (Z)-3-heksenol i heksanol su najzastupljeniji alkoholi i p-cimen, terpinen-4-ol i γ-terpinen, terpeni odgovorni za karakterističnu aromu ploda mušmule, takođe su prisutni. C6 alifatična jedinjenja, kao što su heksanal i (E)-2-heksenal su nađeni kao glavne isparljive komponente zelenih mušmula. Za razliku od njih, heksanol, (Z)-3-heksenol su glavne komponente zrelih plodova mušmule.",
publisher = "Assoc Chemists & Chemical Engineers Of Serbia, Belgrade",
journal = "Hemijska industrija",
title = "Volatile compounds in Medlar fruit (Mespilus germanica L.) at two ripening stages, Isparljiva jedinjenja iz ploda mušmule (Mespilus germanica L.) u dve faze zrenja",
volume = "67",
number = "3",
pages = "437-441",
doi = "10.2298/HEMIND120611085V",
url = "Kon_2521"
}
Veličković, M., Radivojevic, D. D., Oparnica, C. D., Nikićević, N., Živković, M. B., Đorđević, N. O., Vajs, V.,& Tešević, V.. (2013). Volatile compounds in Medlar fruit (Mespilus germanica L.) at two ripening stages. in Hemijska industrija
Assoc Chemists & Chemical Engineers Of Serbia, Belgrade., 67(3), 437-441.
https://doi.org/10.2298/HEMIND120611085V
Kon_2521
Veličković M, Radivojevic DD, Oparnica CD, Nikićević N, Živković MB, Đorđević NO, Vajs V, Tešević V. Volatile compounds in Medlar fruit (Mespilus germanica L.) at two ripening stages. in Hemijska industrija. 2013;67(3):437-441.
doi:10.2298/HEMIND120611085V
Kon_2521 .
Veličković, Milovan, Radivojevic, Dragan D., Oparnica, Cedo D., Nikićević, Ninoslav, Živković, Marijana B., Đorđević, Neda O., Vajs, Vlatka, Tešević, Vele, "Volatile compounds in Medlar fruit (Mespilus germanica L.) at two ripening stages" in Hemijska industrija, 67, no. 3 (2013):437-441,
https://doi.org/10.2298/HEMIND120611085V .,
Kon_2521 .
4
4
4

Standard and Sensory Quality of Plum Brandies Produced from Top-Quality Fruits of 'Cacanska Rodna'

Popović, Blazenka S.; Paunovic, S.; Mitrovic, O.; Kandić, M.; Nikićević, Ninoslav; Tešević, Vele

(Int Soc Horticultural Science, Leuven 1, 2013)

TY  - CONF
AU  - Popović, Blazenka S.
AU  - Paunovic, S.
AU  - Mitrovic, O.
AU  - Kandić, M.
AU  - Nikićević, Ninoslav
AU  - Tešević, Vele
PY  - 2013
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1395
AB  - 'Cacanska Rodna' is a plum cultivar with combined properties which is mainly used for drying and producing plum brandy, but is also as the dessert cultivar and for freezing. Fruit weight in this cultivar varies greatly (from less than 20 g to values exceeding 40 g). This fruit property is not considered crucial for assessing quality of plum brandy, therefore training system need not presuppose hard pruning. However, in order to gain top-quality fruits for fresh consumption, drying and freezing (with fruit weight higher than 30 g and even in excess of 40 g) hard pruning in plum orchards is a must. Unfavourable market trends in some years tend to result in lower demand for this cultivar be it fresh or frozen or intended for processing. In such circumstances, high-quality fruits of 'Cacanska Rodna' from hard-pruning orchards are used only as the raw material for plum brandy production. The paper presents the study of quality of plum brandies (chemical composition prescribed by the law regulation and sensory characteristics) produced by the identical technological procedure from high-quality fruits of 'Cacanska Rodna' grown on four different sites. Fruit weight ranged from 31.96 g to 42.11 g. Although chemical composition and assessment of sensory characteristics of produced brandies varied among sites, quality of all produced plum brandies satisfied requirements of the law regulation of Serbia and the EU. By processing high-quality fruits of 'Cacanska Rodna' we obtained brandies with concentrations of methanol (below 5.62 g/L a.a.) and HCN (less than 1 mg/L a.a.) considerably lower than the values prescribed by the law as maximum.
PB  - Int Soc Horticultural Science, Leuven 1
T1  - Standard and Sensory Quality of Plum Brandies Produced from Top-Quality Fruits of 'Cacanska Rodna'
VL  - 981
SP  - 755
EP  - 760
UR  - Kon_2515
UR  - https://hdl.handle.net/21.15107/rcub_cherry_1395
ER  - 
@conference{
author = "Popović, Blazenka S. and Paunovic, S. and Mitrovic, O. and Kandić, M. and Nikićević, Ninoslav and Tešević, Vele",
year = "2013",
abstract = "'Cacanska Rodna' is a plum cultivar with combined properties which is mainly used for drying and producing plum brandy, but is also as the dessert cultivar and for freezing. Fruit weight in this cultivar varies greatly (from less than 20 g to values exceeding 40 g). This fruit property is not considered crucial for assessing quality of plum brandy, therefore training system need not presuppose hard pruning. However, in order to gain top-quality fruits for fresh consumption, drying and freezing (with fruit weight higher than 30 g and even in excess of 40 g) hard pruning in plum orchards is a must. Unfavourable market trends in some years tend to result in lower demand for this cultivar be it fresh or frozen or intended for processing. In such circumstances, high-quality fruits of 'Cacanska Rodna' from hard-pruning orchards are used only as the raw material for plum brandy production. The paper presents the study of quality of plum brandies (chemical composition prescribed by the law regulation and sensory characteristics) produced by the identical technological procedure from high-quality fruits of 'Cacanska Rodna' grown on four different sites. Fruit weight ranged from 31.96 g to 42.11 g. Although chemical composition and assessment of sensory characteristics of produced brandies varied among sites, quality of all produced plum brandies satisfied requirements of the law regulation of Serbia and the EU. By processing high-quality fruits of 'Cacanska Rodna' we obtained brandies with concentrations of methanol (below 5.62 g/L a.a.) and HCN (less than 1 mg/L a.a.) considerably lower than the values prescribed by the law as maximum.",
publisher = "Int Soc Horticultural Science, Leuven 1",
title = "Standard and Sensory Quality of Plum Brandies Produced from Top-Quality Fruits of 'Cacanska Rodna'",
volume = "981",
pages = "755-760",
url = "Kon_2515, https://hdl.handle.net/21.15107/rcub_cherry_1395"
}
Popović, B. S., Paunovic, S., Mitrovic, O., Kandić, M., Nikićević, N.,& Tešević, V.. (2013). Standard and Sensory Quality of Plum Brandies Produced from Top-Quality Fruits of 'Cacanska Rodna'. 
Int Soc Horticultural Science, Leuven 1., 981, 755-760.
Kon_2515
Popović BS, Paunovic S, Mitrovic O, Kandić M, Nikićević N, Tešević V. Standard and Sensory Quality of Plum Brandies Produced from Top-Quality Fruits of 'Cacanska Rodna'. 2013;981:755-760.
Kon_2515 .
Popović, Blazenka S., Paunovic, S., Mitrovic, O., Kandić, M., Nikićević, Ninoslav, Tešević, Vele, "Standard and Sensory Quality of Plum Brandies Produced from Top-Quality Fruits of 'Cacanska Rodna'", 981 (2013):755-760,
Kon_2515 .
1

Antioxidant Capacity of Teas and Herbal Infusions: Polarographic Assessment

Gorjanović, Stanislava; Komes, Drazenka; Pastor, Ferenc; Belscak-Cvitanovic, Ana; Pezo, Lato; Hecimovic, Ivana; Sužnjević, 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  - Sužnjević, 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 Sužnjević, 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.,& Sužnjević, 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, Sužnjević 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, Sužnjević, 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
56
60
65

Quality of plum brandies produced from plum cultivars with combined properties

Popović, Branko; Nikićević, Ninoslav; Tešević, Vele; Mitrović, Olga; Kandić, Miodrag; Miletić, Nemanja

(2012)

TY  - JOUR
AU  - Popović, Branko
AU  - Nikićević, Ninoslav
AU  - Tešević, Vele
AU  - Mitrović, Olga
AU  - Kandić, Miodrag
AU  - Miletić, Nemanja
PY  - 2012
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/175
AB  - Besides plum cultivars intended for brandy making, numerous plum cultivars with combined traits are also used for the production of plum brandy in Serbia. The latter are used as dessert fruits, as well as for freezing and processing into prunes, jam, marmalade, compote, etc. In some years, depending on market trends, larger or smaller quantities of high-quality fruits of the these cultivars, which are, otherwise, intended for both fresh consumption and processing by means of different methods of preservation, are being processed into brandy. In seasons in question, plum fruits are harvested exactly at the moment when they reach the stage of maturity that is common for plums intended for processing into brandy. In this paper we investigated physical and chemical properties of fruits of five cultivars with combined traits widely grown in Serbia - 'Čačanska Lepotica', 'Čačanska Najbolja', 'Čačanska Rodna', 'Valjevka' and 'Stanley', grown on two localities. Processing of the tested plum varieties into brandy was done in the same manner. Physical and chemical analysis was performed as well as the assessment of sensory characteristics of the produced plum brandies. Fruit characteristics of individual varieties, as well as the location from which these plum fruits originate are of great importance for the quality of brandy. The composition of produced plum brandies meets the legislation requirements of both Serbia and the EU. The utilization of high-quality fruits and applied technological processes resulted in considerably low content of undesirable components in plum brandies (methanol and prussic acid) which are below the legally permitted maximum. Differences in sensory assessment of brandies produced from the same cultivar, which depend on growing locality, ranged from 0.21 points (in 'Čačanska Najbolja') to 0.70 points (in 'Čačanska Rodna').
AB  - U radu su ispitivane fizičko hemijske karakteristike plodova pet sorata šljive kombinovanih svojstava koje su široko zastupljene u voćarstvu Srbije - 'Čačanska lepotica', 'Čačanska najbolja', 'Čačanska rodna', 'Valjevka' i 'Stanley', sa dva lokaliteta. Šljive su obrane u stadijumu pune zrelosti i prerađene u šljivovicu na isti način. Izvršena je fizičko hemijska analiza i senzorna ocena proizvedenih sortnih šljivovica. Razlike u hemijskom sastavu i senzornim karakteristikama dobijenih šljivovica uslovljene su sortnim karakteristikama ploda i lokalitetom sa kojeg potiču. Sve šljivovice su zadovoljavale zahteve zakonske regulative Srbije i EU.
T2  - Voćarstvo
T1  - Quality of plum brandies produced from plum cultivars with combined properties
T1  - Kvalitet šljivovica od sorata šljive kombinovanih svojstava
VL  - 46
IS  - 177-178
SP  - 23
EP  - 31
UR  - Kon_598
UR  - https://hdl.handle.net/21.15107/rcub_cherry_175
ER  - 
@article{
author = "Popović, Branko and Nikićević, Ninoslav and Tešević, Vele and Mitrović, Olga and Kandić, Miodrag and Miletić, Nemanja",
year = "2012",
abstract = "Besides plum cultivars intended for brandy making, numerous plum cultivars with combined traits are also used for the production of plum brandy in Serbia. The latter are used as dessert fruits, as well as for freezing and processing into prunes, jam, marmalade, compote, etc. In some years, depending on market trends, larger or smaller quantities of high-quality fruits of the these cultivars, which are, otherwise, intended for both fresh consumption and processing by means of different methods of preservation, are being processed into brandy. In seasons in question, plum fruits are harvested exactly at the moment when they reach the stage of maturity that is common for plums intended for processing into brandy. In this paper we investigated physical and chemical properties of fruits of five cultivars with combined traits widely grown in Serbia - 'Čačanska Lepotica', 'Čačanska Najbolja', 'Čačanska Rodna', 'Valjevka' and 'Stanley', grown on two localities. Processing of the tested plum varieties into brandy was done in the same manner. Physical and chemical analysis was performed as well as the assessment of sensory characteristics of the produced plum brandies. Fruit characteristics of individual varieties, as well as the location from which these plum fruits originate are of great importance for the quality of brandy. The composition of produced plum brandies meets the legislation requirements of both Serbia and the EU. The utilization of high-quality fruits and applied technological processes resulted in considerably low content of undesirable components in plum brandies (methanol and prussic acid) which are below the legally permitted maximum. Differences in sensory assessment of brandies produced from the same cultivar, which depend on growing locality, ranged from 0.21 points (in 'Čačanska Najbolja') to 0.70 points (in 'Čačanska Rodna')., U radu su ispitivane fizičko hemijske karakteristike plodova pet sorata šljive kombinovanih svojstava koje su široko zastupljene u voćarstvu Srbije - 'Čačanska lepotica', 'Čačanska najbolja', 'Čačanska rodna', 'Valjevka' i 'Stanley', sa dva lokaliteta. Šljive su obrane u stadijumu pune zrelosti i prerađene u šljivovicu na isti način. Izvršena je fizičko hemijska analiza i senzorna ocena proizvedenih sortnih šljivovica. Razlike u hemijskom sastavu i senzornim karakteristikama dobijenih šljivovica uslovljene su sortnim karakteristikama ploda i lokalitetom sa kojeg potiču. Sve šljivovice su zadovoljavale zahteve zakonske regulative Srbije i EU.",
journal = "Voćarstvo",
title = "Quality of plum brandies produced from plum cultivars with combined properties, Kvalitet šljivovica od sorata šljive kombinovanih svojstava",
volume = "46",
number = "177-178",
pages = "23-31",
url = "Kon_598, https://hdl.handle.net/21.15107/rcub_cherry_175"
}
Popović, B., Nikićević, N., Tešević, V., Mitrović, O., Kandić, M.,& Miletić, N.. (2012). Quality of plum brandies produced from plum cultivars with combined properties. in Voćarstvo, 46(177-178), 23-31.
Kon_598
Popović B, Nikićević N, Tešević V, Mitrović O, Kandić M, Miletić N. Quality of plum brandies produced from plum cultivars with combined properties. in Voćarstvo. 2012;46(177-178):23-31.
Kon_598 .
Popović, Branko, Nikićević, Ninoslav, Tešević, Vele, Mitrović, Olga, Kandić, Miodrag, Miletić, Nemanja, "Quality of plum brandies produced from plum cultivars with combined properties" in Voćarstvo, 46, no. 177-178 (2012):23-31,
Kon_598 .

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

Sužnjević, Desanka; Pastor, Ferenc; Gorjanović, Stanislava

(Elsevier Science Bv, Amsterdam, 2011)

TY  - JOUR
AU  - Sužnjević, Desanka
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 = "Sužnjević, Desanka 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"
}
Sužnjević, D., 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
Sužnjević D, 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 .
Sužnjević, Desanka, 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 .
33
36
38

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; Sužnjević, Desanka

(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  - Sužnjević, Desanka
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 Sužnjević, Desanka",
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.,& Sužnjević, D.. (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, Sužnjević D. 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, Sužnjević, Desanka, "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 .
17
16
20

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.; Sužnjević, Desanka

(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  - Sužnjević, Desanka
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 Sužnjević, Desanka",
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.,& Sužnjević, D.. (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, Sužnjević D. 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., Sužnjević, Desanka, "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 .
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