Electrochemical study of flavonoids in acetonitrile: Structure-activity relationships

N. Arroyo-Currás, M. F. Videa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Relations between structure, antioxidant capacity and formal redox potentials (E°') of six flavonoids dissolved in acetonitrile were studied by cyclic voltammetry and square wave voltammetry using a glassy carbon electrode. This work shows correlation between the electrochemical parameter E°' and the number of hydroxyl groups present in the B ring of flavonoids. Besides, it has been observed that E°' measured as a function of B ring oxidation depends considerably on the functional groups present in the ring C of these molecules. Since antioxidant activity of flavonoids is attributed to their proton-donating, the results of this work were compared to previous reports regarding the antioxidant capacity of these compounds. Even though the antioxidant activity of flavonoids depends on several factors, the conclusions of this investigation suggest that the E°' value should be considered as a key parameter for the evaluation of antioxidant activity.

Original languageEnglish (US)
Title of host publicationMES 25
Subtitle of host publicationElectrochemistry for Alternative Energy Sources and Environmental Improvement
Pages349-359
Number of pages11
Edition1
DOIs
StatePublished - Dec 1 2010
Event25th National Meeting of the Mexican Electrochemical Society, MES and the 3rd Meeting of the Mexican Section of the Electrochemical Society, ECS - Zacatecas, Mexico
Duration: May 31 2010Jun 4 2010

Publication series

NameECS Transactions
Number1
Volume29
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

Other25th National Meeting of the Mexican Electrochemical Society, MES and the 3rd Meeting of the Mexican Section of the Electrochemical Society, ECS
CountryMexico
CityZacatecas
Period5/31/106/4/10

ASJC Scopus subject areas

  • Engineering(all)

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