食品科学 ›› 2003, Vol. 24 ›› Issue (4): 140-142.

• 营养卫生 • 上一篇    下一篇

大蒜细胞溶质中超氧化物歧化酶的性质研究

 谢岩黎, 李元瑞, 张广彬, 谷瑞芳, 魏国翔   

  1. 西北农林科技大学食品科学与工程学院,河南职业技术师范学院食品科学与工程系
  • 出版日期:2003-04-15 发布日期:2011-12-13

Study on the Properties of Superoxide Dismutase from Allium Sativum Plasma

 XIE  Yan-Li, LI  Yuan-Rui, ZHANG  Guang-Bin, GU  Rui-Fang, WEI  Guo-Xiang   

  • Online:2003-04-15 Published:2011-12-13

摘要: 利用热变性、等电点沉淀和DEAE-纤维素柱层析分离纯化大蒜细胞溶质中的超氧化物歧化酶(Superoxidedismutase,SOD),并对其性质进行了研究。结果表明:温度40~60℃、pH4~9范围内酶的活性稳定对KCN和H2O2敏感紫外光区的吸收峰在258nm,可见光区的吸收峰在680nm,表明酶的类型可能是Cu•Zn-SOD。

关键词: 大蒜细胞溶质, 超氧化物歧化酶, 性质

Abstract: A superoxide dismutase from Allium Sativum plasma has been isolat ed and purified by the heat treatment.sedimentation with isoelectric point and ch romatograph on DEAE-cellulose,and it’s property was studied.The study shows t hat:the enzymatic activityis stable within the temperature 40~60℃ and pH 4 ~ 9.And the enzyme is sensitive to KCN and H2O2,the absorption apex exhibits a t 2 58nm in ultraviolet spectrum and at 680nm in visible spectra,the facts indi cate that the enzyme is copper/zinc SOD.

Key words: allium sativum plasma, superoxide dismutase, property