Thermodynamic activity-based enzyme kinetics : Efficient tool for nonaqueous enzymology
Thermodynamic activity-based enzyme kinetics : Efficient tool for nonaqueous enzymology
复制标题
基于热力学活性的酶动力学:非水酶学的有效工具
DOI:
--
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发表时间:
2001
期刊:
影响因子:
--
通讯作者:
J. Condoret
中科院分区:
文献类型:
--
作者:
G. Sandoval;A. Marty;J. Condoret
Lipase-catalyzed synthesis reactions must be performed in nonaqueous media (organic solvents or solvent-free systems). The choice of the optimal solvent is usually a fastidious task that necessitates the determination of kinetic parameters in each solvent. The approach used here, to overcome the lack of a model that can predict the kinetics whatever the solvent, consists in the use of thermodynamic activities instead of concentrations of components, and assumes that activity-based kinetic parameters are the same in all solvents. This assumption is discussed, and a solution is proposed which takes into account some observed residual solvent effects. The reaction chosen to test this approach was the esterification of oleic acid with ethanol catalyzed by an immobilized lipase, Lipozyme. For this reaction, the kinetics predicted in various organic solvents and in solvent-free systems is in agreement with the experimental data.
影响因子:
3.1
作者:
Fitzpatrick,PA;Ringe,D;Klibanov,AM
通讯作者:
Klibanov,AM
DOI:
10.1073/pnas.89.11.5167
发表时间:
1992-06-01
影响因子:
11.1
作者:
AFFLECK, R;HAYNES, CA;CLARK, DS
通讯作者:
CLARK, DS
DOI:
10.1073/pnas.94.9.4250
发表时间:
1997
影响因子:
11.1
作者:
Schmitke,JL;Stern,LJ;Klibanov,AM
通讯作者:
Klibanov,AM