红三叶草异黄酮抗氧化活性的研究  

Study on Antioxidation Activity of Isoflavones from Trifolium pratense L.

作　　者：沈玥[1] 张永忠[1] 

机构地区：[1]东北农业大学理学院,黑龙江哈尔滨150030

出　　处：《食品与发酵工业》2009年第11期122-124,共3页Food and Fermentation Industries

基　　金：黑龙江省教育厅科技攻关项目(10541035)

摘　　要：以红三叶草为原料,采用超声波提取异黄酮类物质,选用NKA-9大孔吸附树脂来纯化红三叶草中异黄酮物质,并用紫外分光光度法测定红三叶草中异黄酮类化合物的含量。测定异黄酮提取物对羟自由基、超氧自由基清除实验及对猪油抗氧化实验表明:红三叶草异黄酮提取物对消除自由基和抑制脂质过氧化均有较强作用,能有效延缓油脂脂质过氧化,表现出一定的抗氧化活性。Isoflavones in Trifolium pratense L. was extracted by ultrasonic wave extraction. Macroporous adsorption resin （NKA-9） was used to purify isoflavones. The clearing capacity of hydroxyl radical and the inhibitory effect on lipid oxidation were all very significant; the extraction could delay the oxidization of oil lipid which showed strong antioxidant activity.

关 键 词：红三叶草 异黄酮类物质 超声波 抗氧化性 

分 类 号：R285[医药卫生—中药学]