1999•China Nuclear Science and Technology ReportRequires access

Antioxidation and Scavenging Effects of Some Extracts from Chinese Medicines on Free Radicals

Gui Fengmei

Abstract

The inhibiting effects of Chinonin, Quercetin and Tannic Acid on the lipid oxidation induced by radiation exposure were investigated by means of a modified TBA spectrophotometry. The scavenging effects on free radicals caused by y-irradiation exposure of the three active principles were observed by technique of ESR. The results showed that antioxidation effects of Chinonin and Quercetin were better than that of Tannic Acid, while the scavenging effects of the three active principles on free radicals were similar.

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Key concepts: Tannic acid, Radical, Chemistry, Scavenging, Quercetin, Antioxidant, Irradiation, Flavonoid