Effect of oxygen delignification on the rate and extent of enzymatic hydrolysis of lignocellulosic material

被引：86

作者：

Draude, KM ^{[1
]}

Kurniawan, CB ^{[1
]}

Duff, SJB ^{[1
]}

机构：

[1] Univ British Columbia, UBC Pulp & Paper Ctr, Dept Biol & Chem Engn, Vancouver, BC V6T 1Z4, Canada

来源：

BIORESOURCE TECHNOLOGY | 2001年 / 79卷 / 02期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1016/S0960-8524(01)00055-4

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

In this study, we examined the effect of oxygen delignification on the rate and extent of enzymatic hydrolysis (using commercial cellulase and P-glucosidase) of a number of lignocellulosic substrates, including kraft pulp (model substrate), pulp mill primary clarifier sludge (PCS) and steam-exploded Douglas fir chips. Oxygen delignification removed up to 67% of the lignin from softwood pulp and improved the rate of, and yield from, hydrolysis by up to 111% and 174%, respectively. Glucose yield varied linearly with fractional lignin removal. Oxygen delignification of primary clarifier sludge improved hydrolysis yield by up to 90%. However steam-exploded Douglas fir was very resistant to hydrolysis at low enzyme loading, and oxygen delignification decreased hydrolysis rate and yield. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：113 / 120

页数：8

共 17 条

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