Title: Kinetic parameters for pressure-temperature inactivation of Bacillus subtilis alpha-amylase under dynamic conditions
Authors: Ludikhuyze, LR ×
VandenBroeck, I
Weemaes, CA
Hendrickx, Marc #
Issue Date: Sep-1997
Publisher: Amer chemical soc
Series Title: Biotechnology Progress vol:13 issue:5 pages:617-623
Abstract: Pressure-temperature inactivation kinetics of two enzymatic model systems based on Bacillus subtilis alpha-amylase (BSA), previously determined under isobaric-isothermal conditions, were studied under more realistic, i.e. dynamic, process conditions. The proposed kinetic model was found to accurately describe non-isobaric/non-isothermal inactivation of BSA in absence as well as in presence of 15% glycerol. Furthermore the effect of pressure cycling on the inactivation of BSA (in absence of glycerol) was investigated. Multiple application of pressure seemed to exert a more pronounced inactivation effect as compared to a single-cycle process of the same total time. This additional effect, however, could be completely attributed to the more extensive temperature variation occurring during pressure cycling.
ISSN: 8756-7938
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Centre for Food and Microbial Technology
× corresponding author
# (joint) last author

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