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Title: Trypsin inhibition activity of heat-denatured ovomucoid: A kinetic study
Authors: Van der Plancken, Iesel ×
Van Remoortere, Marijke
Van Loey, Ann
Hendrickx, Marc #
Issue Date: 2004
Publisher: Amer chemical soc
Series Title: Biotechnology Progress vol:20 issue:1 pages:82-86
Abstract: A kinetic study was conducted on the effect of heating in the temperature range of 75-110 degreesC on the trypsin inhibition activity of ovomucoid. Heat treatment of isolated ovomucoid resulted in a time-dependent decrease in trypsin inhibition activity that could accurately be described by a first-order kinetic model. The magnitude and the temperature dependence of the rate constants was affected by the pH during heat treatment. The heat stability of ovomucoid was the lowest at pH 7.6. Heat treatments intended to decrease the trypsin inhibition activity should therefore be carried out as soon as possible after laying, because the ovomucoid was inactivated faster at the pH of fresh egg white (pH 7.6). The presence of the other egg white constituents decreased the heat stability of ovomucoid compared to that of the model system of ovomucoid in buffer, presumably by the formation of ovomucoid-lysozyme complexes in the former.
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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