TEMPERATURE-DEPENDENCE OF LIPOXYGENASE HEAT INACTIVATION - EVALUATIONWITH LINEARLY INCREASING TEMPERATURE PROFILES

Authors
LOPEZ P DELAFUENTE JL BURGOS J
Citation
P. Lopez et al., TEMPERATURE-DEPENDENCE OF LIPOXYGENASE HEAT INACTIVATION - EVALUATIONWITH LINEARLY INCREASING TEMPERATURE PROFILES, Zeitschrift fur Lebensmittel-Untersuchung und -Forschung, 199(4), 1994, pp. 281-284
Citations number
10
Categorie Soggetti
Food Science & Tenology
Journal title
Zeitschrift fur Lebensmittel-Untersuchung und -Forschung → ACNP
ISSN journal
00443026
Volume
199
Issue
4
Year of publication
1994
Pages
281 - 284
Database
ISI
SICI code
0044-3026(1994)199:4<281:TOLHI->2.0.ZU;2-P
Abstract
A non-isothermal kinetic method for evaluating the temperature depende nce of enzyme heat inactivation has been developed from theoretical co nsiderations. By using a non-linear regression software programme and enzyme activity data obtained along linearly increasing temperature pr ofiles, z values of lipoxygenase were obtained in single experiments, substantially reducing time, cost, and labour. The z values so obtaine d were slightly dependent on heating rate, varying from 4.11-degrees-C at a rate of heating of 2.56-degrees C/min to 4.66-degrees-C at a hea ting rate of 1.48-degrees-C/min.