Comparison of Antioxidant Activity in Five Fruit Wine of Guangxi in China

摘要

With reference to VC,for the first time,this thesis studied the antioxidant activity in five fruit wine of Guangxi by five different systems (NO2,·OH,O2·,DPPH· and reduction ability) and the scoring method.Study results indicated:Firstly,five fruit wine had strong antioxidant ability in vitro except the Rosa laevigata michx wine had no scavenging effect on O2·.Especially Fructus phyllanthus wine and the Rosa laevigata michx wine had scavenging effect on ·OH as the same as VC and more reduction ability than VC.What's more,Sour plum wine had more scavenging effect on O2·than VC; Secondly,by scoring method,the following was the antioxidant activity in order:Fructus rhodomyrti wine＜Wild grape wine of luo city＜Sour plum wine＜the Rosa laevigata michx wine＜Fmctus phyllanthus wine.And the following was the polyphenol content in order:Sour plum wine＜ Fmctus rhodomyrti wine＜Wild grape wine of luo city＜Fructus phyllanthus wine≈the Rosa laevigata michx wine.So,antioxidant activity of Fructus phyllanthus wine was the strongest with most polyphenol content,while that of Fmctus rhodomyrti wine was the least.