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dc.creatorPotkonjak, Nebojsa I.
dc.creatorVeselinović, Dragan S.
dc.creatorNovaković, Miroslav
dc.creatorGorjanović, Stanislava Ž.
dc.creatorPezo, Lato
dc.creatorSuznjevic, Desanka Z.
dc.date.accessioned2019-01-30T17:33:08Z
dc.date.available2019-01-30T17:33:08Z
dc.date.issued2012
dc.identifier.issn0278-6915
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/1128
dc.description.abstractAntioxidant 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.en
dc.publisherPergamon-Elsevier Science Ltd, Oxford
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172015/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/43010/RS//
dc.rightsrestrictedAccess
dc.sourceFood and Chemical Toxicology
dc.subjectPropolis extracten
dc.subjectAntioxidant activityen
dc.subjectHydrogen peroxideen
dc.subjectPolarographyen
dc.titleAntioxidant activity of propolis extracts from Serbia: A polarographic approachen
dc.typearticle
dc.rights.licenseARR
dcterms.abstractГорјановиц, Станислава З.; Поткоњак, Небојса И.; Новаковић, Мирослав; Сузњевиц, Десанка З.; Веселиновиц, Драган С.; Пезо, Лато Л.;
dc.citation.volume50
dc.citation.issue10
dc.citation.spage3614
dc.citation.epage3618
dc.citation.other50(10): 3614-3618
dc.citation.rankaM21
dc.identifier.pmid22842121
dc.identifier.doi10.1016/j.fct.2012.07.029
dc.identifier.rcubConv_2870
dc.identifier.scopus2-s2.0-84865518003
dc.identifier.wos000309897100032
dc.type.versionpublishedVersion


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