TY  - JOUR
AU  - Potkonjak, Nebojša I.
AU  - Veselinović, Dragan S.
AU  - Novaković, Miroslav M.
AU  - Gorjanovic, Stanislava Z.
AU  - Pezo, Lato
AU  - Sužnjevicć, Desanka Ž.
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5101
AB  - Antioxidant activity (AO) of commercial propolis extracts (PEs), available on Serbian market, was determined by direct current (DC) polarography. Polarographic anodic current of 5.0 mmol L-1 alkaline solution of H2O2 was recorded at potentials of mercury dissolution. Decrease of the current was plotted against the volume of gradually added PEs. The volume of PE causing 20% current decrease was determined from the linear part of the plot. Antioxidant activity was expressed in H2O2 equivalent (HPEq), representing the volume of PE that corresponds to 1.0 mmol L-1 H2O2 decrease. Resulting HPEq ranged between 1.71 +/- 0.11 and 8.00 +/- 0.18 mu L. Range of 1,1-dipheny1-2-picryl hydrazyl (DPPH) radical scavenging activity was from 0.093 +/- 0.004% to 0.346 +/- 0.006%. Total phenolic content (TCP) of PE with superior AO activity was 5.31 +/- 0.05%g GAE, while the extract with the lowest activity contained 1.45 +/- 0.02%g GAE. Antioxidant activity, determined by polarographic method, was correlated with DPPH scavenging activity (R-2 = 0.991) and TCP (R-2 = 0.985). Validity of obtained results was further confirmed using ANOVA and post hoc Tukey HSD test. (C) 2012 Elsevier Ltd. All rights reserved.
T2  - Food and Chemical Toxicology
T1  - Antioxidant activity of propolis extracts from Serbia: A polarographic approach
VL  - 50
IS  - 10
SP  - 3614
EP  - 3618
DO  - 10.1016/j.fct.2012.07.029
ER  - 

@article{
author = "Potkonjak, Nebojša I. and Veselinović, Dragan S. and Novaković, Miroslav M. and Gorjanovic, Stanislava Z. and Pezo, Lato and Sužnjevicć, Desanka Ž.",
year = "2012",
abstract = "Antioxidant activity (AO) of commercial propolis extracts (PEs), available on Serbian market, was determined by direct current (DC) polarography. Polarographic anodic current of 5.0 mmol L-1 alkaline solution of H2O2 was recorded at potentials of mercury dissolution. Decrease of the current was plotted against the volume of gradually added PEs. The volume of PE causing 20% current decrease was determined from the linear part of the plot. Antioxidant activity was expressed in H2O2 equivalent (HPEq), representing the volume of PE that corresponds to 1.0 mmol L-1 H2O2 decrease. Resulting HPEq ranged between 1.71 +/- 0.11 and 8.00 +/- 0.18 mu L. Range of 1,1-dipheny1-2-picryl hydrazyl (DPPH) radical scavenging activity was from 0.093 +/- 0.004% to 0.346 +/- 0.006%. Total phenolic content (TCP) of PE with superior AO activity was 5.31 +/- 0.05%g GAE, while the extract with the lowest activity contained 1.45 +/- 0.02%g GAE. Antioxidant activity, determined by polarographic method, was correlated with DPPH scavenging activity (R-2 = 0.991) and TCP (R-2 = 0.985). Validity of obtained results was further confirmed using ANOVA and post hoc Tukey HSD test. (C) 2012 Elsevier Ltd. All rights reserved.",
journal = "Food and Chemical Toxicology",
title = "Antioxidant activity of propolis extracts from Serbia: A polarographic approach",
volume = "50",
number = "10",
pages = "3614-3618",
doi = "10.1016/j.fct.2012.07.029"
}

Potkonjak, N. I., Veselinović, D. S., Novaković, M. M., Gorjanovic, S. Z., Pezo, L.,& Sužnjevicć, D. Ž.. (2012). Antioxidant activity of propolis extracts from Serbia: A polarographic approach. in Food and Chemical Toxicology, 50(10), 3614-3618.
https://doi.org/10.1016/j.fct.2012.07.029

Potkonjak NI, Veselinović DS, Novaković MM, Gorjanovic SZ, Pezo L, Sužnjevicć DŽ. Antioxidant activity of propolis extracts from Serbia: A polarographic approach. in Food and Chemical Toxicology. 2012;50(10):3614-3618.
doi:10.1016/j.fct.2012.07.029 .

Potkonjak, Nebojša I., Veselinović, Dragan S., Novaković, Miroslav M., Gorjanovic, Stanislava Z., Pezo, Lato, Sužnjevicć, Desanka Ž., "Antioxidant activity of propolis extracts from Serbia: A polarographic approach" in Food and Chemical Toxicology, 50, no. 10 (2012):3614-3618,
https://doi.org/10.1016/j.fct.2012.07.029 . .