食品科学 ›› 2002, Vol. 23 ›› Issue (6): 56-58.

• 基础研究 • 上一篇    下一篇

天然紫草素的研究

 王威, 邹金华   

  1. 天津师范大学化学与生命科学学院
  • 出版日期:2002-06-15 发布日期:2012-02-13

Study on Antioxidant Activity of Natural ShiKoniu

 WANG  Wei, ZOU  Jin-Hua   

  • Online:2002-06-15 Published:2012-02-13

摘要: 天然紫草为醌类物质。对环境pH值比较敏感,色调随pH值的变化而改变。对热比较稳定,但自然光的照射会引起吸光度值的下降。它具有一定的抗氧活性,其抗氧能力相当于维生素C的35.5%。紫草是十分具有开发利用价值的天然资源。

关键词: 紫草素, 醌, DPPH法, 抗氧活性

Abstract: Natural shikoniu,anaphoquinonc was very sensityive t o environment pHIts color changed wi thpH,but it was rather stable to temperature.But,absorbance could be decreased by n atural illumination.The natural sh ikoniu showd some antioxidant activity,an d its capability was approximately 35%of the vitamin C.Chinese.gromwell(Li hospermumerythrorrhizon)is a very exploitable natural resource.

Key words: Shikoniu , Naphoquinone , DPPHmethod , Antioxidant activity