食品科学 ›› 2009, Vol. 30 ›› Issue (5): 79-81.doi: 10.7506/spkx1002-6630-200905017

• 基础研究 • 上一篇    下一篇

一点红黄酮分离及抗氧化研究

韦媛媛,周吴萍,陈晓伟,田玉红,李军生*   

  1. 广西工学院生物与化学工程系
  • 收稿日期:2008-03-12 修回日期:2008-05-07 出版日期:2009-03-01 发布日期:2010-12-29
  • 通讯作者: 李军生 E-mail:junshenglee63@yahoo.com.cn
  • 基金资助:

    广西自然科学基金项目(桂科基0575023)

Study on Separation and Anti-oxidant Action of Total Flavonoids of Emilia sonchifolia

WEI Yuan-yuan,ZHOU Wu-ping,CHEN Xiao-wei,TIANYu-hong,LI Jun-sheng*   

  1. (Department of Biological and Chemical Engineering, Guangxi University of Technology, Liuzhou 545006, China)
  • Received:2008-03-12 Revised:2008-05-07 Online:2009-03-01 Published:2010-12-29
  • Contact: LI Jun-sheng* E-mail:junshenglee63@yahoo.com.cn

摘要:

研究一点红黄酮的分离提纯及其清除1,1- 二苯基-2- 苦基苯肼自由基(DPPH·)和羟基自由基(·OH)作用。经乙醇回流提取、聚酰胺柱层析分离提纯得到一点红黄酮;采用薄层层析对其进行定性分析;采用紫外- 可见分光光度法测定其清除DPPH·和·OH 的能力。结果表明,一点红黄酮清除DPPH·和·OH 的IC50 分别是4.8× 10-3、0.53mg/ml,说明它具有清除DPPH·和·OH 的作用。

关键词: 一点红, 黄酮, D P P H·, ·OH , 抗氧化作用

Abstract:

The total flavonoids of Emilia sonchifolia were extracted by ethanol refluxing and separated by polyurethane column, and their scavenging activities to 1,1-diphenyl-2-picrylhydrazyl (DPPH·) and hydroxyl radicals were measured by spectrophotometry. The results showed that the obtained products from Emilia sonchifolia are total flavonoids confirmed by thin layer chromatography, the separation effect of total flavonoids from Emilia sonchifolia is satisfying, and the total flavonoids present good scavenging activities to DPPH· and hydroxyl radicals with the IC50 values of 4.8×10-3 mg/ml and 0.53 mg/ml, respectively.

Key words: Emilia sonchifolia, total flavonoids, DPPH radical, hydroxyl radical, anti-oxidant action

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