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α-淀粉酶在疏水作用色谱中保留的热力学研究

冯小艳 耿信鹏 戴丽 吴丹 郑长征 耿信笃

西安工程大学学报2009,Vol.23Issue(4):71-78,8.
西安工程大学学报2009,Vol.23Issue(4):71-78,8.

α-淀粉酶在疏水作用色谱中保留的热力学研究

Thermodynamics of retention for α-amylase in hydrophobic interaction chromatography

冯小艳 1耿信鹏 1戴丽 1吴丹 2郑长征 1耿信笃2

作者信息

  • 1. 西安工程大学,环境与化学工程学院,陕西,西安,710048
  • 2. 西北大学,现代分离科学研究所,陕西,西安,710069
  • 折叠

摘要

Abstract

The retention behavior for the denatured α-Amylase in hydrophobic interaction chromatography (HIC) was investigated. The results showed that the retention behaviors for α-Amylase were all well followed the non-linear Van′t Hoff equation. The calculated thermodynamic parameters in retention of α-Amylase showed that the retention of α-Amylase in HIC is driven by entropy, andΔH0, ΔS0 and ΔCP 0 linearly correlate both with the corresponding absolute temperatures and their reciprocals, respectively. The calculated folding free energy ΔΔGF of partially denatured α-Amylase on the stationary phase surface in HIC are much higher than that in solution, and the highest folding free energy is at 298K.

关键词

α-淀粉酶/疏水作用色谱/折叠自由能/热力学

Key words

α-Amylase(α-Amy)/hydrophobic interaction chromatography (HIC)/folding free energy/thermodynamics

分类

化学化工

引用本文复制引用

冯小艳,耿信鹏,戴丽,吴丹,郑长征,耿信笃..α-淀粉酶在疏水作用色谱中保留的热力学研究[J].西安工程大学学报,2009,23(4):71-78,8.

基金项目

Supported by the National Natural Science Foundation of China(20673080) (20673080)

西安工程大学学报

OACSTPCD

1674-649X

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