Abstract
The antioxidative activities of (-)-epigallocatechin gallate (EGCg) metabolites degraded by rat intestinal flora were investigated by a flow injection analysis coupled to an on-line antioxidant detection system with the 2,2'-azinobis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical cation. All of the metabolites were found to have antioxidative activity, suggesting that the EGCg metabolites may show antioxidative activity in the body.
MeSH terms
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Animals
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Antioxidants / analysis
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Antioxidants / chemistry
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Antioxidants / metabolism*
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Benzothiazoles / metabolism
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Catechin / analogs & derivatives*
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Catechin / chemistry
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Catechin / metabolism
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Flow Injection Analysis
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Free Radical Scavengers / analysis
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Free Radical Scavengers / chemistry
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Free Radical Scavengers / metabolism*
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Intestinal Mucosa / metabolism*
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Intestines / microbiology
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Lactones / metabolism
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Microbiological Phenomena
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Rats
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Sulfonic Acids / metabolism
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Tea / chemistry
Substances
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Antioxidants
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Benzothiazoles
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Free Radical Scavengers
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Lactones
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Sulfonic Acids
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Tea
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2,2'-azino-di-(3-ethylbenzothiazoline)-6-sulfonic acid
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Catechin
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epigallocatechin gallate
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gamma-valerolactone