Multi-enzyme production by Cellulomonas sp grown on wheat straw

被引：20

作者：

Emtiazi, G ^{[1
]}

Nahvi, I ^{[1
]}

机构：

[1] Univ Esfahan, Fac Sci, Dept Biol, Esfahan, Iran

来源：

BIOMASS & BIOENERGY | 2000年 / 19卷 / 01期

关键词：

Cellulomonas sp; wheat straw; cellulase; amylase; manganese peroxidase;

D O I：

10.1016/S0961-9534(00)00015-5

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Cellulomonas sp. isolated from silkworm and rabbit's waste secreted carboxymethyl cellulase (CMCase), cellobiase, filter paperase (Fpase), xylanase, amylase and manganese peroxidase during growth of wheat straw. Some enzymes remained cell membrane bound, but could be released by various treatments, the highest yields via sonication. Carboxymethyl cellulase, cellobiase and Fpase activities had pH optima of 6.0, 5.5 and 6.0 respectively. CMCase and cellobiase activities both had an optimum temperature of 50 degrees C whereas Fpase had an optimum temperature of 45 degrees C. The pH and optimal temperature for xylanase activity were 6.0 and 50 degrees C respectively. The activities of thermostable alpha-amylase and manganese peroxidase by Cellulomonas are reported for the first time. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：31 / 37

页数：7

共 15 条

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[2] Repression and inactivation of alpha-amylase in Thermomonospora species during growth an cellobiose [J].