食品科学 ›› 2005, Vol. 26 ›› Issue (6): 123-125.

• 基础研究 • 上一篇    下一篇

天然植物抗氧化剂清除氧自由基特性研究

 田云, 卢向阳, 何小解   

  1. 湖南农业大学生化与发酵工程实验室,中南大学湘雅二医院小儿肾病研究室
  • 出版日期:2005-06-15 发布日期:2011-09-19

Scavenging Capacities on Oxygen Radicals of Natural Plant Antioxidants

 TIAN  Yun, LU  Xiang-Yang, HE  Xiao-Jie   

  1. 1.The Lab of Biochemistry and Fermentation Engineering, Hunan Agricultural University;2. The Second Hospital of Xiangya Medical College, Central South University
  • Online:2005-06-15 Published:2011-09-19

摘要: 目的:比较不同天然植物抗氧化剂清除氧自由基能力。方法:生物化学发光法。结果:儿茶素、甘草提取物、迷迭香提取物、葡萄籽提取物、虎杖提取物和银杏叶提取物清除O2•-的能力IC50分别为6.16、42.13、184.29、15.86、25.48和33.47μg/ml;清除•OH的能力IC50分别为0.59、5.59、39.89、2.93、7.15和10.44μg/ml;清除H2O2的能力IC50分别为0.69、24.02、16.80、1.34、27.27和6.09μg/ml。结论:儿茶素对3种主要氧自由基的清除能力均最强。

关键词: 抗氧化剂, 氧自由基, 化学发光

Abstract: Objective: To compare the scavenging capacities on oxygen radicals of natural plant antioxidants. Methods:Chemiluminescence. Results: The IC of scavenging O for catechin, the extraction from licorice, • - 50 2 rosemary, grape seed, pulygonum cuspidatum and ginkgo leaf was respectively 6.16, 42.13, 184.29, 15.86, 25.48 and 33.47μ g/ml. The IC50 of scavenging •OH was respectively 0.59, 5.59, 39.89, 2.93, 7.15 and 10.44μg/ml. The IC50 of scavenging H2O2 was respectively 0.69, 24.02, 16.80, 1.34, 27.27 and 6.09μg/ml. Conclusion:The scavenging capacities of catechin was the strongest.

Key words: antioxidant, oxygen radicals, chemiluminescence