Antioxidative properties of functional polyphenols and their metabolites assessed by an ORAC assay

Hidekazu Ishimoto, Akihiro Tai, Morio Yoshimura, Yoshiaki Amakura, Takashi Yoshida, Tsutomu Hatano, Hideyuki Ito

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

We compared the antioxidative activities of polyphenol metabolites with those of intact functional polyphenols by an assay of the oxygen radical absorbance capacity (ORAC). The metabolites of ellagitannin geraniin, chlorogenic acid, and (-)-epigallocatechin gallate displayed more potent antioxidative activity than their respective original compounds. Our findings suggest that these metabolites may play important roles as biological antioxidants after their consumption.

Original languageEnglish
Pages (from-to)395-399
Number of pages5
JournalBioscience, Biotechnology and Biochemistry
Volume76
Issue number2
DOIs
Publication statusPublished - 2012

Keywords

  • AAPH
  • Antioxidative activity
  • Metabolite
  • Oxygen radical absorbance capacity (ORAC)
  • Polyphenol

ASJC Scopus subject areas

  • Biotechnology
  • Analytical Chemistry
  • Biochemistry
  • Applied Microbiology and Biotechnology
  • Molecular Biology
  • Organic Chemistry

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