2008•Science and Technology of Food IndustryRequires access

Study on antioxidative activities of crude and pure flavoniods from buckwheat bran in vitro

Zhou Yi-ming

Abstract

The antioxidant activity of flavoniods from tatary buckwheat bran ware evaluated by scavenging activities of superoxide anion(O-2·) generated by pyrogallol autooxidation system and hydroxyl free radicals(·OH) generated by Fenton reaction and inhibiting activity of oxidation system of linoleic acid induced by alkyl radical.Results showed that flavoniods from tatary buckwheat bran had distinctive scavenging effects of superoxide radical and hydroxyl radical and their inhibition responses onoxidation system of linoleic acid induced by alkyl radical were also remarkable.In addition,the purified flavonoid from tatary buckwheat bran was stronger than that of crude flavonoid.

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Key concepts: Pyrogallol, Chemistry, Autoxidation, Superoxide, Linoleic acid, Radical, Antioxidant, Bran