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Original Articles

Antioxidative Properties of Functional Polyphenols and Their Metabolites Assessed by an ORAC Assay

, , , , , & show all
Pages 395-399 | Received 22 Sep 2011, Accepted 15 Nov 2011, Published online: 22 May 2014
 

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.

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