Influence of the physical state of lignin on its degradability by the lignin peroxidase of Phanerochaete chrysosporium

被引：0
|
作者：
Kurek, Bernard [1 ]
Monties, Bernard [1 ]
Odier, Etienne [1 ]
机构：
[1] Cent de Biotechnologies, Agro-Industrielles, France
来源：
Integration, the VLSI Journal | 1990年 / 9卷 / 03期
关键词：
Cell Culture--Bacterial - Chemical Reactions--Catalysis - Colloids--Oxidation - Enzymes--Activity;
D O I：
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中图分类号：
学科分类号：
摘要：
The rate of oxidation of spruce milled wood lignin by Phanerochaete chrysosporium was investigated with precipitated lignin as well as lignin finely dispersed in water (colloidal lignin). H2O2 consumption rates in the course of lignin oxidation in the presence of purified lignin peroxidase were much higher with colloidal lignin compared with precipitated lignin. Characterization of reaction products and molecular-size distribution confirms that reaction rate of lignin peroxidase with 14C-lignin is strongly dependent on the physical state of lignin. The lignin peroxidase catalyse mainly repolymerization of colloidal lignin. However, in the presence of veratryl alcohol, both polymerization and depolymerization were observed.
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页码：771 / 777
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