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Thermal stability for the effective use of commercial catalase

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Miłek J., Wójcik M., Verschelde W.
Polish Journal of Chemical Technology
|
2014
|
vol. 16
|
issue 4
75-79
EN
Catalase with the commercial catalase name Terminox Ultra is widely used in the textile industry in bleaching processes. This enzyme is used to catalyse the decomposition of residual hydrogen peroxide into oxygen and water. In this study catalase was kept for about 30 hours in water baths in a temperature range from 35 to 70°C. For the first time, the kinetics of thermal deactivation of this enzyme was examined using an oxygen electrode. Stability of the enzyme depends strongly on temperature and its half-life times are 0.0014 h and 7.6 h, at 35 and 70°C, respectively.
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