Study on polyphenolic active ingredients and antioxidant activity in fruit of Xiangbai apricot

The contents of total phenolics, flavanol, flavonid and condensed tannin in Xiangbai apricot fruit were analysed.Antioxidant activity and the effects on scavenging hydroxyl radical(·OH), the oxygen free radical(O~·_2), and lipid radical(R~·)in apricot fruit extracts. The results showed that contents of flavanol and flavonoid were almost vesame.Condensed tannin were investigated contents were much less than flavanol and flavonoid in apricot fruit,and the extracts had powerful antioxidant activity and significantly scavenging effects on·OH and O~·_2.but the scavenging effect on R~· was not signicant.