Advantages of a two-step enzymatic process for cotton-polyester blends

被引：10
|
作者：
Schimper, Christian B. [1 ]
Ibanescu, Constanta [1 ]
Keckeis, Rupert [1 ]
Bechtold, Thomas [1 ]
机构：
[1] Leopold Franzens Univ Inssbruck, Inst Text Chem & Text Phys, Christian Doppler Lab Text & Fibre Chem Cellulos, A-6850 Dornbirn, Austria
来源：
BIOTECHNOLOGY LETTERS | 2008年 / 30卷 / 03期
关键词：
cellulase; cellulose; hydrolysis; pre-treatment; textile processing;
D O I：
10.1007/s10529-007-9569-1
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
Cotton fabric samples were treated with a formulation of a total crude Trichoderma reesei cellulase in a two-step procedure. In the first step, samples were treated at a low liquor ratio by padding through the enzyme formulation at 21 degrees C and 55 degrees C with a wet pickup of 100% and batched for 12 h. The samples were then treated at a high liquor ratio (1:25) with an identical enzyme formulation at 55 degrees C, with intensive agitation. The pre-treatment influenced the overall weight loss and rate of hydrolysis in samples, and the protein concentration in the liquor of the second step. The overall weight loss was 25-28% (w/w) in the two-step procedure compared to a weight loss of 22% (w/w) in the one-step batch hydrolysis.
引用
收藏
页码：455 / 459
页数：5
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