不同品种桃的酚类活性成分及其抗氧化功能研究

Study on Phenolic Active Ingredients in Various Peaches and Their Antioxidative Activities

分析了中熟品种久保和京玉、晚熟品种绿化九号与冈山白4种桃果实的酚类活性成分。并对其进行了抗氧化功能的研究。经高效液相色谱及比色分析结果表明，4种桃果实总酚的含量具有显著性差异；黄垸醇的含量均在10～14μg／g；中熟品种的类黄酮含量要比晚熟品种的含量高。抗氧化实验结果表明，4种桃果实酚类提取液均具有很强的抗氧化活性。且对^＊OH、O2^＊-有较明显的清除效果，但它们对R^＊的清除效果较差。

Phenolic active ingredients in Okubo, Jingyu, Green 9^# , Hakuto and their antioxidative activities were analyzed. The results showed that the great quantitative differences in the contents of total phenolics and the contents of flavanol were 0. 010～0. 014 mg/g in four peach varieties. The contents of flavonid in Okubo, Jingyu were higher than that of Green 9^# , Hakuto. In addition to phenolic ,the extracts of four kinds of peach had powerful antioxidant activities and significantly scavenging effects on ^＊OH and O2^＊- , but were not significant on R^＊.