کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
232061 1427470 2007 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Stability and activity of enzyme aggregates of Calb in supercritical CO2
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Stability and activity of enzyme aggregates of Calb in supercritical CO2
چکیده انگلیسی

The activity and stability of a cross-linked enzyme aggregate of Candida antarctica lipase B (CLEA-Calb) in supercritical carbon dioxide (SC-CO2) have been studied. The model reaction used is the esterification of isoamyl alcohol with acetic acid. The catalytic performance of CLEA-Calb is evaluated both in batch and in continuous experiments, with a focus on the effect of water production upon reaction. The results of the batch experiments show a decreasing initial activity of the CLEA-Calb with an increase in pressure. Moreover, CLEAs appear to be highly stable in supercritical carbon dioxide and also remain active during continuous reactions. Suggestions for improved process designs are given for which the optimal design depends on the specific reaction requirements.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Journal of Supercritical Fluids - Volume 41, Issue 1, May 2007, Pages 102–108
نویسندگان
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