1999•Acta Scientiarum Naturalium Universitatis SunyatseniRequires access

Antioxidatioin and scavenging effects on free radicals of some extracts from Chinese medicines

WANGChongdao, QIANGYizhong

Abstract

The inhibiting effects of CHinonin,Quercetin and Tannic Acid on the lipid oxidation (LPO) induced by irradiation were investigated by means of a modified TBA spectrophotometry.The scavenging effects of theses three active compounds on free radicals were studied by ESR technique.The results showed that antioxidation effects of Chinonin and Quercetin were better than that of Tannic Acid;though scavenging effects of the threee active compounds were similar.

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Available abstract

Key concepts: Tannic acid, Scavenging, Radical, Chemistry, Quercetin, Antioxidant, Spectrophotometry, Polyphenol