Abstract: Antioxidative activities of different solvent extracts of Terminalia Chebula Retz.were studied by l. l - diphenylpicrylhydrazyl(DPPH )free radical method.TBA method and Na2SO3-I2 titrimetric method respectively The results show that all the extracts had good scavenging effects on DPPH radical but the scavenging activities were weaker than those of tea polyphenols.Under the same dosage,95% ethanol extracts gave stronger resistance to the oxidation of linoleic acid than tea polyphenols did. Antioxidative effcets of ethyl acetate extracts on lard were stronger than those of tea polyphenols but the antioxidative activities of 95% ethanol or n-hexane extracts on lard were weaker than those of tea polyphenols. When the concentration of ethyl acetate extracts in lard was 0.2% (w.t.%).the antioxidative effects were as good as those of TBHQ.

Key words: Terminalia Chebula Retx Antioxidative effect