2008•Tianran chanwu yanjiu yu kaifaRequires access

Free Radical Scavenging Effects of Extracts from Sanguisorba officinalis

Long Hui

Abstract

The scavenging effects of four fractions of the extract from Sanguisorba officinalis on superoxide anion free radical (O-2·) and hydroxyl free radical (·OH) were studied by three photometric methods and BHT was used as reference.The results showed that all fractions except that from petroleum ether possessed ·OH free radical scanvenging effects,but no effect on O-2· free radical.The ethyl acetate fraction possessed the strongest scavenging activity on ·OH free radical.

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Key concepts: Chemistry, Hydroxyl radical, Scavenging, Petroleum ether, Ethyl acetate, Organic chemistry, Ether, Radical ion