杨梅素的半合成及抗氧化活性比较  

Semisynthesis and comparison of anti-oxidative activities of myricetin

作　　者：刘同方[1] 于华忠[1] 陈雁梅 王亭[1] 

机构地区：[1]吉首大学林产化工工程湖南省重点实验室,湖南张家界427000

出　　处：《食品与发酵工业》2015年第6期125-127,133,共4页Food and Fermentation Industries

基　　金：湖南省高校"林产资源化学与林化产品开发"科技创新团队支持计划(湘教通(2010)212号)

摘　　要：以显齿蛇葡萄叶中含量丰富且易于提取的二氢杨梅素为原料,采用Algar-Flynn-Oyamada(AFO)反应法和有机碱催化氧化法,合成了杨梅素,并从抑制过氧化物生成和清除DPPH·能力两方面,对杨梅素产品和杨梅素对照品进行了体外抗氧化性能对比研究。结果表明:杨梅素产品对过氧化物的生成具有一定的抑制作用,对DPPH·有较好的清除效果,其抗氧化性能总体上与杨梅素对照品相当,没有显著性差异。Dihydromyricetin is abundant in the leaves of Ampelopsis grossedentata and easily extracted. It used as the semisynthetic source for preparing myricetin by AFO reaction and organic base-catalyzed oxidation reaction.The antioxidative activities of myricetin products and control in vitro on inhibiting superoxide generation and scavenging DPPH· ability were studied. The results showed that myricetin products had a certain inhibition effect on the superoxide generation,and have good scavenging effect on DPPH·. The antioxidant capacity was similar to the control without significant difference.

关 键 词：二氢杨梅素 半合成 杨梅素 抗氧化 

分 类 号：TS201.2[轻工技术与工程—食品科学]