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Title: Analysis of the inactivation kinetics of freeze-dried alpha-amylase from Bacillus amyloliquefaciens at different moisture contents
Authors: Saraiva, J ×
Oliveira, JC
Hendrickx, Marc
Oliveira, FAR
Tobback, Paul #
Issue Date: Jan-1996
Publisher: Academic press ltd
Series Title: Food science and technology-lebensmittel-wissenschaft & technologie vol:29 issue:3 pages:260-266
Abstract: The thermal inactivation kinetics of freeze-dried alpha-amylase in a solid matrix was studied at water contents ranging from 1.5 to 23.9 g water per 100 g dry solid. These conditions were obtained by equilibration in dry environments, with water activities ranging between 0.11 and 0.88. Isothermal inactivation experiments in the range 135 to 150 degrees C were performed Results were analysed with both the Bigelow and Arrhenius models. It was concluded that there was no statistical significance to suggest that the rr ater content influenced the kinetic parameters An activation energy of 128 kJ/mol and pre-exponential factor with a logarithm of 33.9 described all the results well.
ISSN: 0023-6438
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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