Kinetic Profile of the Antioxidant Activity of Propolis Extract: 2,2-Diphenyl-1-Picrylhydrazyl Radical Bleaching Assay-Reference-Cited by-同舟云学术

Kinetic Profile of the Antioxidant Activity of Propolis Extract: 2,2-Diphenyl-1-Picrylhydrazyl Radical Bleaching Assay

Published:2018-06-01 Issue:1 Volume:62 Page:39-46
ISSN:2299-4831
Container-title:Journal of Apicultural Science
language:en
Short-container-title:

Author:

Mirković Snježana¹,Rajković Katarina²,Jeremić Sanja³,Gavrilović Marijana²,Tomić Ljiljana¹,Arsenijević Valentina Arsić⁴,Krstić Boro⁵

Affiliation:

1. Faculty of Pharmacy , University of Bijeljina , Bijeljina , Bosnia and Herzegovina

2. College of Applied Studies of Technics and Technology , Kruševac , Serbia

3. Institute of Molecular Genetics and Genetic Engineering , University of Belgrade , Belgrade , Serbia

4. Institute of Microbiology and Immunology, Faculty of Medicine , University of Belgrade , Serbia

5. Faculty of Agriculture , University of Bijeljina , Bijeljina , Bosnia and Herzegovina

Abstract

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•) bleaching assay kinetic profile. The kinetic profile of scavenging DPPH• 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•, determined for the first time in this study, was 0.17 dm3g−1s−1. The obtained k2 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

Walter de Gruyter GmbH

Subject

Insect Science,Plant Science

Link

https://www.sciendo.com/pdf/10.2478/jas-2018-0004

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