食品科学

• 生物工程 • 上一篇    下一篇

氧化电位法评价皂苷抗氧化活性

苏 伟,赵 利,袁美兰,刘 华,陈 钢   

  1. 1.江西科技师范学院生命科学学院,江西 南昌 330013;2.南昌大学生命科学与食品工程学院,江西 南昌 330013
  • 出版日期:2014-03-15 发布日期:2014-04-04

Evaluation of Antioxidant Activity of Saponin by Oxidation-Reduction Potential

SU Wei, ZHAO Li, YUAN Mei-lan, LIU Hua, CHEN Gang   

  1. 1. College of Life Science, Jiangxi Science and Technology Normal University, Nanchang 330013, China;
    2. College of Life Science and Food Engineering, Nanchang University, Nanchang 330013, China
  • Online:2014-03-15 Published:2014-04-04

摘要:

应用电化学技术研究不同皂苷的氧化还原电位(oxidation-reduction potential,ORP)与清除自由基能力的相关性。结果表明:氧化还原电位低的皂苷溶液清除DPPH自由基、•OH与O2-•的能力弱,氧化还原电位高的皂苷溶液清除DPPH自由基、•OH与O2-•的能力强,皂苷溶液清除自由基的能力与其ORP值呈正相关。

关键词: 皂苷, 氧化还原电位, 电化学技术, 自由基

Abstract:

Oxidation-reduction potential (ORP) of different saponins and its correlation with free radical scavenging capacitywere studied electrochemically. Results indicated that saponin solutions with low ORP values displayed a weak scavengingcapacity against free radicals (DPPH radical, •OH and O2-•), and vice versa. The free radical scavenging capacity of saponinswas found to be positively correlated with ORP values.

Key words: saponin, oxidation-reduction potential, electrochemical technology, free radical