薏苡茎乙酸乙酯提取物抗氧化性研究  

Study on the Antioxidant Effect of Ethyl Acetate Extractive from Stem of Coix Lachryma-jobi L.

作　　者：郭圣奇 黄挺章 李远辉[1] 马忠丽[1] 齐梁煜 卢善善 黄锁义[4] 

机构地区：[1]右江民族医学院临床学院,广西百色533000 [2]右江民族医学院基础学院,广西百色533000 [3]右江民族医学院护理学院,广西百色533000 [4]右江民族医学院药学院,广西百色533000

出　　处：《化学世界》2015年第4期219-221,共3页Chemical World

基　　金：国家自然科学基金资助项目(81360684);广西自然科学基金资助项目(2011GXNSFA018046);广西中医药科技专项资助课题(GZKZ10-128);广西教育厅课题(201106LX425);广西中医药管理局课题(gzzc1047)

摘　　要：以薏苡茎为对象,研究薏苡茎乙酸乙酯提取物抗氧化活性。薏苡茎经乙酸乙酯加热回流后提取其有效成分,采用紫外分光光度法测定其抑制超氧阴离子(O-2·)的能力、清除DPPH·自由基的能力以及用丁基羟基茴香醚(BHA)作对照测定其对Fe2+的螯合能力。结果表明薏苡茎乙酸乙酯提取物有较强的清除DPPH·自由基的能力、清除超氧阴离子(O-2·)的能力、螯合金属离子Fe2+的能力。因此薏苡茎乙酸乙酯提取物具有较强的抗氧化性。The antioxidant effect of the ethyl acetate extract of stem of coix lachryma-dobi L. was studied. The effective constituent of stem of coix lachryma-jobi L. was obtained by heating and refluxing in ethyl acetate solvent. Ultraviolet speetrophotometry was used to measure the ability of the extract for clearing O2 · and DPPH · and for chelating Fe2＋ in comparison with butyl hydroxy anisole （BHA）. The results showed that the ethyl acetate extract of stem of coix lachryma-jobi L. had a significant effect on clearing O2 · and DPPH · and chelating Fe2＋. So, ethyl acetate extractive from stem of coix lachryma-jobi L. have significant antioxidant effect.

关 键 词：薏苡茎 乙酸乙酯提取物 抗氧化 

分 类 号：R284.2[医药卫生—中药学]