枣花蜜中清除DPPH自由基的活性成分  

Analysis of Bioactive DPPH Free Radical Scavenging Components in Date Honey

作　　者：穆雪峰[1,2] 孙丽萍[1] 徐响[1] 庞杰[2] 

机构地区：[1]中国农业科学院蜜蜂研究所,北京100093 [2]福建农林大学食品科学学院,福建福州350002

出　　处：《食品科学》2010年第21期119-122,共4页Food Science

基　　金：国家现代农业(蜂)产业技术体系建设专项(NYCYTX-43);科技部农业科技成果转化资金项目(2009GB23260456);中国农业科学院科研经费项目

摘　　要：通过HPLC-DPPH和清除DPPH自由基实验研究枣花蜜中对DPPH自由基具有清除作用的活性成分,并测定已知活性成分的含量。结果表明:枣花蜜中存在12种对DPPH自由基有清除作用的活性成分,其中4种是已知化合物——咖啡酸、对香豆酸、山奈酚和柚皮素,其含量在48.8～741.3μg/100g,各成分对DPPH自由基的清除能力存在明显差异,其差异与分子结构密切相关。The bioactive components in date honey having the ability to scavenge DPPH free radicals were quanlitatively and quantitatively analyzed by HPLC-DPPH.In total,12 DPPH free radical scavenging components were found in date honey,and 4 of them were identified as caffeic acid,p-coumaric acid,naringenin and kaempferol.The contents of these components were in the range of 48.8 to 741.3 μg/100 g honey.The scavenging capacities of these bioactive components exhibited an obvious difference,which was highly correlated with the molecular structures of bioactive components.

关 键 词：枣花蜜 活性成分 DPPH自由基 分子结构 

分 类 号：S896.1[农业科学—特种经济动物饲养]