Enzymatic modification of softwood dissolving pulp

被引：0
|
作者：
Gubitz, GM [1 ]
Csom, G [1 ]
Johansson, CI [1 ]
Saddler, JN [1 ]
机构：
[1] Graz Tech Univ, Inst Mikrobiol, A-8010 Graz, Austria
来源：
7TH INTERNATIONAL CONFERENCE ON BIOTECHNOLOGY IN THE PULP AND PAPER INDUSTRY - POSTER PRESENTATIONS VOL C | 1998年
关键词：
D O I：
暂无
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：
The nature of the residual hemicellulose fraction in a softwood dissolving pulp was probed using various cellulases and hemicellulases. About 50% of the hemicellulose present in a dissolving pulp could be solubilised by treatment with hemicellulase enzymes. Half of the remaining hemicellulose present in the pulp appeared to be entrapped within the cellulose matrix while the other half was associated with lignin-carbohydrate complexes. The latter hemicellulose portion was isolated and characterized. Chromatography and spectroscopic techniques revealed the presence of two types of lignin-carbohydrate complexes (LCC), a galactoglucomannan-lignin complex (DP 50 - 60) and a xylan-lignin complex (DP > 200).
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页码：C167 / C170
页数：4
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