| Literature DB >> 18406607 |
Selvia Kurniawati1, James A Nicell.
Abstract
Laccase (oxygen oxidoreductase, EC 1.10.3.2) from Trametes versicolor was thoroughly characterized in terms of its catalytic stability and its effectiveness as a biocatalyst under various reaction conditions when using phenol as a model substrate. This enzyme demonstrated high or moderate degrees of stability at pHs from 5 to 8 at 25 degrees C and at temperatures from 10 to 30 degrees C at pH 6. Exponential decay expressions were successfully used to model laccase inactivation when incubated under various conditions of pH and temperature. Phenol transformation was optimum at pH 6, but significant transformation was observed over a pH range of 4-7, provided that sufficient laccase was present in the reacting solution. Partial inactivation of laccase was observed during the oxidation of phenol, even under conditions of optimal stability (pH 6 and 25 degrees C).Entities:
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Year: 2008 PMID： 18406607 DOI： 10.1016/j.biortech.2008.01.084
Source DB: PubMed Journal: Bioresour Technol ISSN： 0960-8524 Impact factor: 9.642