苦荞水提液清除活性氧作用研究  

Scavenging Reactive Oxygen Species by the Aqueous Extraction of Fagopyrum tataricum(L.) Gaertn

作　　者：张以忠[1] 邓琳琼[1] 

机构地区：[1]毕节学院地理与生命科学学院,贵州毕节551700

出　　处：《湖北农业科学》2014年第15期3597-3600,共4页Hubei Agricultural Sciences

基　　金：贵州省教育厅自然科学研究项目(黔教科2010074号);中央高校基本科研业务费专项资金资助项目(XDJK2012C111);贵州省科技厅;毕节市科技局及毕节学院科技联合基金项目[黔科合J字LKB(2013)21号]

摘　　要：用NBT光化还原法、Fenton反应法和钼酸铵显色分光光度法对苦荞[Fagopyrum tataricum(L.)Gaertn]叶和茎水提液清除羟基自由基(·OH)、超氧阴离子自由基(·O2-)和过氧化氢(H2O2)的作用进行了研究。结果表明,苦荞叶和茎水提液具有较强的清除自由基能力,而且随水提液浓度增加其清除能力增强。其中叶的清除能力显著高于茎。The scavenging effects of aqueous extractions from the leaf and the aerial stem of Fagopyrum tartaricum on hydrox- yl radicals, superoxide anion radicals and hydrogen peroxide were studied with nitro blue terra-zolium photochemica reduc- tion, Fenton reaction and spectrophotometric assay. The results showed that the aqueous extractions from the leaf and aerial stem of Fagopyrum tartaricum had a strong capacity of scavenging radicals. The scavenging capacity was enhanced with the increase of concentration of the aqueous extractions. The scavenging capacity of the aqueous extractions from leaf was signifi- cantly higher than that of those from aerial stem.

关 键 词：苦荞[Fagopyrum tataricum(L.) Gaertn] 水提液 自由基 清除能力 

分 类 号：R285.5[医药卫生—中药学] S517[医药卫生—中医学]