TY  - JOUR
AU  - Mirković, Snjezana
AU  - Rajković, Katarina
AU  - Jeremić, Sanja
AU  - Gavrilović, Marijana
AU  - Tomić, Ljiljana
AU  - Arsić-Arsenijević, Valentina
AU  - Krstić, Boro
PY  - 2018
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1112
AB  - The objective of this paper was to assess the antiradical effectiveness of propolis extract (PE) based on 2.2-diphenyl-1-picrylhydrazyl radical (DPPH center dot) bleaching assay kinetic profile. The kinetic profile of scavenging DPPH center dot for PE exhibited one kinetic period characterized by one kinetic constant. The second-order rate constant (k(2)) for the oxidation of PE by DPPH center dot, determined for the first time in this study, was 0.17 dm(3)g(-1)s(-1). The obtained k(2) value was compared to that of synthetic antioxidants and natural extracts used in the food industry. Kinetic analysis of PE antiradical effectiveness showed that the k(2) was within the range values for natural colorants of fruit extracts and should be considered as a fast acting natural antioxidant source. The k(2) parameter indicates the extent of oxidation inhibition that is based on all of the kinetic profiles of DPPH bleaching rather than single point measurements. For this reason, the kinetic analysis should become a necessary step for more precise antioxidative characterization of propolis.
PB  - Research Inst Pomology Floriculture, Div Apiculture, Pulawy
T2  - Journal of Apicultural Science
T1  - Kinetic profile of the antioxidant activity of propolis extract: 2,2-diphenyl-1-picrylhydrazyl radical bleaching assay
EP  - 46
IS  - 1
SP  - 39
VL  - 62
DO  - 10.2478/JAS-2018-0004
ER  - 

@article{
author = "Mirković, Snjezana and Rajković, Katarina and Jeremić, Sanja and Gavrilović, Marijana and Tomić, Ljiljana and Arsić-Arsenijević, Valentina and Krstić, Boro",
year = "2018",
abstract = "The objective of this paper was to assess the antiradical effectiveness of propolis extract (PE) based on 2.2-diphenyl-1-picrylhydrazyl radical (DPPH center dot) bleaching assay kinetic profile. The kinetic profile of scavenging DPPH center dot for PE exhibited one kinetic period characterized by one kinetic constant. The second-order rate constant (k(2)) for the oxidation of PE by DPPH center dot, determined for the first time in this study, was 0.17 dm(3)g(-1)s(-1). The obtained k(2) value was compared to that of synthetic antioxidants and natural extracts used in the food industry. Kinetic analysis of PE antiradical effectiveness showed that the k(2) was within the range values for natural colorants of fruit extracts and should be considered as a fast acting natural antioxidant source. The k(2) parameter indicates the extent of oxidation inhibition that is based on all of the kinetic profiles of DPPH bleaching rather than single point measurements. For this reason, the kinetic analysis should become a necessary step for more precise antioxidative characterization of propolis.",
publisher = "Research Inst Pomology Floriculture, Div Apiculture, Pulawy",
journal = "Journal of Apicultural Science",
title = "Kinetic profile of the antioxidant activity of propolis extract: 2,2-diphenyl-1-picrylhydrazyl radical bleaching assay",
pages = "46-39",
number = "1",
volume = "62",
doi = "10.2478/JAS-2018-0004"
}

Mirković, S., Rajković, K., Jeremić, S., Gavrilović, M., Tomić, L., Arsić-Arsenijević, V.,& Krstić, B.. (2018). Kinetic profile of the antioxidant activity of propolis extract: 2,2-diphenyl-1-picrylhydrazyl radical bleaching assay. in Journal of Apicultural Science
Research Inst Pomology Floriculture, Div Apiculture, Pulawy., 62(1), 39-46.
https://doi.org/10.2478/JAS-2018-0004

Mirković S, Rajković K, Jeremić S, Gavrilović M, Tomić L, Arsić-Arsenijević V, Krstić B. Kinetic profile of the antioxidant activity of propolis extract: 2,2-diphenyl-1-picrylhydrazyl radical bleaching assay. in Journal of Apicultural Science. 2018;62(1):39-46.
doi:10.2478/JAS-2018-0004 .

Mirković, Snjezana, Rajković, Katarina, Jeremić, Sanja, Gavrilović, Marijana, Tomić, Ljiljana, Arsić-Arsenijević, Valentina, Krstić, Boro, "Kinetic profile of the antioxidant activity of propolis extract: 2,2-diphenyl-1-picrylhydrazyl radical bleaching assay" in Journal of Apicultural Science, 62, no. 1 (2018):39-46,
https://doi.org/10.2478/JAS-2018-0004 . .