New antiradical capacity assay with the use potentiometric method.

Electron Transport Peroxides / analysis Potentiometry / methods
AAPH Peroxyl radical Potentiometry Total antiradical capacity

Journal

Analytica chimica acta
ISSN: 1873-4324
Titre abrégé: Anal Chim Acta
Pays: Netherlands
ID NLM: 0370534

Informations de publication

Date de publication:
10 Jan 2019
Historique:
received: 21 05 2018
revised: 16 08 2018
accepted: 13 09 2018
entrez: 29 11 2018
pubmed: 30 11 2018
medline: 28 3 2019
Statut: ppublish

Résumé

For the first time, the dependence of a redox potential change during a reaction of peroxyl radical generation and their interaction with antioxidants was studied. A regular change of a potential is due to oxidation of an antioxidant by initiating peroxyl radicals accompanied by an electron transfer. An original direct method for determining induction periods, inhibition coefficients and an antiradical capacity using the potentiometric method is proposed. Using the proposed approach the induction periods and the inhibition coefficients of various OH, NH, SH containing antioxidants were determined. The antiradical capacity of a herbal extract was studied. A high degree of correlation with a DPPH assay was obtained. RSD results obtained using the proposed approach do not exceed 7%.

Identifiants

DOI: 10.1016/j.aca.2018.09.025 PMID: 30482304
pubmed: 30482304
pii: S0003-2670(18)31096-1
doi: 10.1016/j.aca.2018.09.025
pii:
doi:

Substances chimiques

Peroxides 0
perhydroxyl radical 3170-83-0

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

69-76

Informations de copyright

Copyright © 2018 Elsevier B.V. All rights reserved.

Auteurs

A V Ivanova (AV)

Ural Federal University Named After the First President of Russia B. N. Yeltsin, Chemical Technological Institute, 19 Ul. Mira, 620002, Ekaterinburg, Russian Federation. Electronic address: a.v.ivanova@urfu.ru.

E L Gerasimova (EL)

Ural Federal University Named After the First President of Russia B. N. Yeltsin, Chemical Technological Institute, 19 Ul. Mira, 620002, Ekaterinburg, Russian Federation.

E R Gazizullina (ER)

Ural Federal University Named After the First President of Russia B. N. Yeltsin, Chemical Technological Institute, 19 Ul. Mira, 620002, Ekaterinburg, Russian Federation.

Articles similaires

Mitochondrial inhibitors reveal roles of specific respiratory chain complexes in CRY-dependent degradation of TIM.

Xiangzhong Zheng, Dechun Chen, Brian Zoltowski et al.
1.00
Animals Cryptochromes Drosophila Proteins Mitochondria Electron Transport

Extremely Low-Frequency Electromagnetic Field (ELF-EMF) Increases Mitochondrial Electron Transport Chain Activities and Ameliorates Depressive Behaviors in Mice.

Masaki Teranishi, Mikako Ito, Zhizhou Huang et al.
1.00
Animals Mice Mitochondria Depression Electromagnetic Fields

Polydatin Prevents Electron Transport Chain Dysfunction and ROS Overproduction Paralleled by an Improvement in Lipid Peroxidation and Cardiolipin Levels in Iron-Overloaded Rat Liver Mitochondria.

Itzel Reyna-Bolaños, Elsa Paola Solís-García, Manuel Alejando Vargas-Vargas et al.
1.00
Animals Cardiolipins Glucosides Lipid Peroxidation Reactive Oxygen Species

Antimicrobial and antibiotic-potentiating effect of calcium peroxide nanoparticles on oral bacterial biofilms.

Neha Bankar, Lorenz Latta, Brigitta Loretz et al.
1.00
Biofilms Nanoparticles Humans Pseudomonas aeruginosa Peroxides

Classifications MeSH

questionsmedicales.fr › Métabolisme › Voies et réseaux métaboliques › Transport d'électrons › New antiradical capacity assay with the use...
questionsmedicales.fr › Composés chimiques organiques › Radicaux libres › Peroxydes › New antiradical capacity assay with the use...
questionsmedicales.fr › Techniques d'investigation › Techniques électrochimiques › Potentiométrie › New antiradical capacity assay with the use...