食品科学 ›› 2006, Vol. 27 ›› Issue (2): 125-128.

• 基础研究 • 上一篇    下一篇

耐高温α—淀粉酶的酶学性质研究

 毕金峰, 董福奎   

  1. 中国农业科学院农产品加工研究所农业部农业核技术与农产品加工重点实验室; 内蒙古呼和浩特市赛罕区蔬菜技术推广站
  • 出版日期:2006-02-15 发布日期:2011-09-05

Studies on Enzyme Properties of Heat-resisting α-amylase

 BI  Jin-Feng, DONG  Fu-Kui   

  1. 1.Institute of Agro-Food Science and Technology, Chinese Academy of Agricultural Sciences, Key Laboratory of Agricultural Nuclear Technology and Agro-Food Processing, MOA; 2.Vegetable Technology Popularize Station of Saihan District in Huhehaote City.
  • Online:2006-02-15 Published:2011-09-05

摘要: 耐高温α-淀粉酶是淀粉生产麦芽糖的关键酶。本文对两种耐高温α-淀粉酶的酶学性质进行了对比研究。结果表明:两种酶的耐高温能力差别较大,酶活差别明显;最适pH值均为7.0,耐酸性较差;当Ca2+浓度在7~9mmol/L时,酶活提高明显。

关键词: 耐高温&alpha, -淀粉酶, 性质

Abstract: Heat-resisting α-amylase is a critical enzyme for producing maltose. Enzyme properties of two species of heat- resistingα-amylases were studied. The results were as follows: the heat-resisting ability for two species of enzymes was different, and there was an evident difference in enzyme activity. The optimum pH was 7.0, and the acid-resisting ability was poor. The activity of two kinds of enzymes could be enhanced when the concentration of Ca2+ was 7~9mmol/L in the enzyme solution.

Key words: heat-resisting &alpha, -amylase; property;