ISSN:
1573-6784
Keywords:
supercritical CO2
;
pressure
;
lipase transesterification
Source:
Springer Online Journal Archives 1860-2000
Topics:
Process Engineering, Biotechnology, Nutrition Technology
Notes:
Abstract Transesterification between triolein and stearic acid catalyzed by lipase in pressurized CO2 at 50 °C was classified into three regions according to the pressure. Below 5 MPa which was the non-solvent region, the reaction was limited in the liquid triolein phase and the reaction rate was very slow. In the near critical region, from 5 to 10 MPa, the reaction rate was maximal at 5.9 MPa because of the stabilization of the enzyme-substrate complex. In the supercritical region, above 10 MPa, the reaction rate increased with an increase in pressure reflecting the increase in solubility of substrate in supercritical CO2 © Rapid Science Ltd. 1998
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1008857310455
Permalink
