TY  - JOUR
AU  - Hadzibrahimovic, Mirzeta
AU  - Sužnjević, Desanka
AU  - Pastor, Ferenc
AU  - Antic, Tijana Cvetic
AU  - Žižić, Milan
AU  - Zakrzewska, Joanna
AU  - Živić, Miroslav
PY  - 2017
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2415
AB  - The possibility of reduction of vanadate monomer in the mycelium of fungus Phycomyces blakesleeanus was investigated in this study by means of polarography. Control experiments were performed with vanadyl [V(IV)] and vanadate [V(V)] in 10 mM Hepes, pH 7.2. Addition of P. blakesleeanus mycelium resulted in disappearance of all V(IV) polarographic waves recorded in the control. This points to the uptake of all available V(IV) by the mycelium, up to 185 A mu mol/g(FW), and suggests P. blakesleeanus as a potential agent in V(IV) bioremediation. Polarographic measurements of mycelium with low concentrations (0.1-1 mM) of V(V), that only allows the presence of monomer, showed that fungal mycelia removes around 27% of V(V) from the extracellular solution. Uptake was saturated at 104 +/- 2 A mu mol/g(FW) which indicates excellent bioaccumulation capability of P. blakesleeanus. EPR, V-51 NMR and polarographic experiments showed no indications of any measurable extracellular complexation of V(V) monomer with fungal exudates, reduction by the mycelium or adsorption to the cell wall. Therefore, in contrast to vanadium oligomers, vanadate monomer interactions with the mycelium are restricted to its transport into the fungal cell, probably by a phosphate transporter.
PB  - Springer, Dordrecht
T2  - Antonie van Leeuwenhoek = International Journal of General and Molecular Microbiology
T1  - The interactions of vanadate monomer with the mycelium of fungus Phycomyces blakesleeanus: reduction or uptake?
VL  - 110
IS  - 3
SP  - 365
EP  - 373
DO  - 10.1007/s10482-016-0808-0
ER  - 

@article{
author = "Hadzibrahimovic, Mirzeta and Sužnjević, Desanka and Pastor, Ferenc and Antic, Tijana Cvetic and Žižić, Milan and Zakrzewska, Joanna and Živić, Miroslav",
year = "2017",
abstract = "The possibility of reduction of vanadate monomer in the mycelium of fungus Phycomyces blakesleeanus was investigated in this study by means of polarography. Control experiments were performed with vanadyl [V(IV)] and vanadate [V(V)] in 10 mM Hepes, pH 7.2. Addition of P. blakesleeanus mycelium resulted in disappearance of all V(IV) polarographic waves recorded in the control. This points to the uptake of all available V(IV) by the mycelium, up to 185 A mu mol/g(FW), and suggests P. blakesleeanus as a potential agent in V(IV) bioremediation. Polarographic measurements of mycelium with low concentrations (0.1-1 mM) of V(V), that only allows the presence of monomer, showed that fungal mycelia removes around 27% of V(V) from the extracellular solution. Uptake was saturated at 104 +/- 2 A mu mol/g(FW) which indicates excellent bioaccumulation capability of P. blakesleeanus. EPR, V-51 NMR and polarographic experiments showed no indications of any measurable extracellular complexation of V(V) monomer with fungal exudates, reduction by the mycelium or adsorption to the cell wall. Therefore, in contrast to vanadium oligomers, vanadate monomer interactions with the mycelium are restricted to its transport into the fungal cell, probably by a phosphate transporter.",
publisher = "Springer, Dordrecht",
journal = "Antonie van Leeuwenhoek = International Journal of General and Molecular Microbiology",
title = "The interactions of vanadate monomer with the mycelium of fungus Phycomyces blakesleeanus: reduction or uptake?",
volume = "110",
number = "3",
pages = "365-373",
doi = "10.1007/s10482-016-0808-0"
}

Hadzibrahimovic, M., Sužnjević, D., Pastor, F., Antic, T. C., Žižić, M., Zakrzewska, J.,& Živić, M.. (2017). The interactions of vanadate monomer with the mycelium of fungus Phycomyces blakesleeanus: reduction or uptake?. in Antonie van Leeuwenhoek = International Journal of General and Molecular Microbiology
Springer, Dordrecht., 110(3), 365-373.
https://doi.org/10.1007/s10482-016-0808-0

Hadzibrahimovic M, Sužnjević D, Pastor F, Antic TC, Žižić M, Zakrzewska J, Živić M. The interactions of vanadate monomer with the mycelium of fungus Phycomyces blakesleeanus: reduction or uptake?. in Antonie van Leeuwenhoek = International Journal of General and Molecular Microbiology. 2017;110(3):365-373.
doi:10.1007/s10482-016-0808-0 .

Hadzibrahimovic, Mirzeta, Sužnjević, Desanka, Pastor, Ferenc, Antic, Tijana Cvetic, Žižić, Milan, Zakrzewska, Joanna, Živić, Miroslav, "The interactions of vanadate monomer with the mycelium of fungus Phycomyces blakesleeanus: reduction or uptake?" in Antonie van Leeuwenhoek = International Journal of General and Molecular Microbiology, 110, no. 3 (2017):365-373,
https://doi.org/10.1007/s10482-016-0808-0 . .

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  - 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 = "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.
https://hdl.handle.net/21.15107/rcub_cherry_1919

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.
https://hdl.handle.net/21.15107/rcub_cherry_1919 .

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,
https://hdl.handle.net/21.15107/rcub_cherry_1919 .

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
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"
}

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

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 .

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 . .

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
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"
}

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

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 .

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 . .

TY  - JOUR
AU  - Stanisavljević, Nemanja S.
AU  - Vukotić, Goran N.
AU  - Pastor, Ferenc
AU  - Sužnjević, Desanka
AU  - Jovanović, Živko S.
AU  - Strahinic, Ivana D.
AU  - Fira, Dorde A.
AU  - Radovic, Svetlana S.
PY  - 2015
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1961
AB  - Nine Lactobacillus strains known for surface proteinase activity were chosen from our collection and tested for their ability to grow in pea seed protein-based medium, and to hydrolyze purified pea proteins in order to produce peptides with antioxidant (AO) activity. Two strains, Lactobacillus rhamnosus BGT10 and Lactobacillus zeae LMG17315, exhibited strong proteolytic activity against pea proteins. The AO activity of the pea hydrolysate fraction, MW  lt  10 kDa, obtained by the fermentation of purified pea proteins with Lactobacillus rhamnosus BGT10, was tested by standard spectrophotometric assays (DPPH, ABTS, Fe3+-reducing capacity) and the recently developed direct current (DC) polarographic assay. The low molecular weight fraction of the obtained hydrolysate was separated using ion exchange chromatography, while the AO activity of eluted fractions was determined by means of a sensitive DC polarographic assay without previous concentration of samples. Results revealed that the fraction present in low abundance that contained basic peptides possessed the highest antioxidant activity. Based on the obtained results, it can be concluded that Lactobacillus rhamnosus BGT10 should be further investigated as a candidate strain for large-scale production of bioactive peptides from legume proteins.
PB  - Inst Bioloska Istrazivanja Sinisa Stankovic, Beograd
T2  - Archives of biological sciences
T1  - Antioxidant Activity of Pea Protein Hydrolysates Produced by Batch Fermentation with Lactic Acid Bacteria
VL  - 67
IS  - 3
SP  - 1033
EP  - 1042
DO  - 10.2298/ABS150130066S
ER  - 

@article{
author = "Stanisavljević, Nemanja S. and Vukotić, Goran N. and Pastor, Ferenc and Sužnjević, Desanka and Jovanović, Živko S. and Strahinic, Ivana D. and Fira, Dorde A. and Radovic, Svetlana S.",
year = "2015",
abstract = "Nine Lactobacillus strains known for surface proteinase activity were chosen from our collection and tested for their ability to grow in pea seed protein-based medium, and to hydrolyze purified pea proteins in order to produce peptides with antioxidant (AO) activity. Two strains, Lactobacillus rhamnosus BGT10 and Lactobacillus zeae LMG17315, exhibited strong proteolytic activity against pea proteins. The AO activity of the pea hydrolysate fraction, MW  lt  10 kDa, obtained by the fermentation of purified pea proteins with Lactobacillus rhamnosus BGT10, was tested by standard spectrophotometric assays (DPPH, ABTS, Fe3+-reducing capacity) and the recently developed direct current (DC) polarographic assay. The low molecular weight fraction of the obtained hydrolysate was separated using ion exchange chromatography, while the AO activity of eluted fractions was determined by means of a sensitive DC polarographic assay without previous concentration of samples. Results revealed that the fraction present in low abundance that contained basic peptides possessed the highest antioxidant activity. Based on the obtained results, it can be concluded that Lactobacillus rhamnosus BGT10 should be further investigated as a candidate strain for large-scale production of bioactive peptides from legume proteins.",
publisher = "Inst Bioloska Istrazivanja Sinisa Stankovic, Beograd",
journal = "Archives of biological sciences",
title = "Antioxidant Activity of Pea Protein Hydrolysates Produced by Batch Fermentation with Lactic Acid Bacteria",
volume = "67",
number = "3",
pages = "1033-1042",
doi = "10.2298/ABS150130066S"
}

Stanisavljević, N. S., Vukotić, G. N., Pastor, F., Sužnjević, D., Jovanović, Ž. S., Strahinic, I. D., Fira, D. A.,& Radovic, S. S.. (2015). Antioxidant Activity of Pea Protein Hydrolysates Produced by Batch Fermentation with Lactic Acid Bacteria. in Archives of biological sciences
Inst Bioloska Istrazivanja Sinisa Stankovic, Beograd., 67(3), 1033-1042.
https://doi.org/10.2298/ABS150130066S

Stanisavljević NS, Vukotić GN, Pastor F, Sužnjević D, Jovanović ŽS, Strahinic ID, Fira DA, Radovic SS. Antioxidant Activity of Pea Protein Hydrolysates Produced by Batch Fermentation with Lactic Acid Bacteria. in Archives of biological sciences. 2015;67(3):1033-1042.
doi:10.2298/ABS150130066S .

Stanisavljević, Nemanja S., Vukotić, Goran N., Pastor, Ferenc, Sužnjević, Desanka, Jovanović, Živko S., Strahinic, Ivana D., Fira, Dorde A., Radovic, Svetlana S., "Antioxidant Activity of Pea Protein Hydrolysates Produced by Batch Fermentation with Lactic Acid Bacteria" in Archives of biological sciences, 67, no. 3 (2015):1033-1042,
https://doi.org/10.2298/ABS150130066S . .

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
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"
}

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

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 .

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 . .

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
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"
}

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

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 .

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 . .

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
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"
}

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

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 .

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 . .

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
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"
}

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

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 .

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 . .

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
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"
}

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

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 .

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 . .