天然成分抗氧防衰功效研究  

The antioxidant failure performance of natural ingredients

作　　者：孙春苗[1] 纪天一 张慧春[1] 

机构地区：[1]天津工业大学环境与化学工程学院,天津300387

出　　处：《天然产物研究与开发》2014年第A01期114-116,共3页Natural Product Research and Development

摘　　要：提取八种中药材有效成分，采用邻苯三酚自氧化法测定抗氧防衰性能，检测波长为319nm，时间5min，邻苯三酚浓度为4．5mM，缓冲液pH为8．2，以IC500值作为评价指标。实验结果表明：不同中药材具有不同抗氧能力。且均成量效关系，抗氧能力为山楂〉菊花〉银杏叶〉甘草〉当归〉枸杞〉何首乌〉红景天。The effective component of eight Chinese herbs are extracted and pyrogallol autoxidation is adopted to determine the anfioxidant failure performance of these herbs. Detection wavelength is 319 nm,fime 5min,pyrogallol concentration 4.5 mM and buffer pH 8.2, with IC50value concentration as the evaluation index. Experimental results show that different Chinese herbs have different antioxidant ability with dose-effect relationship. Their antioxidant order is as follows： hawthorn 〉chrysanthemum〉 ginkgo biloba 〉 licorice〉 angelica〉woltberry〉 fleece-flower root〉 rhediola.

关 键 词：天然成分 邻苯三酚 抗氧防衰 IC50值 

分 类 号：R284.2[医药卫生—中药学]