Xylanase and Ultrasound Assisted Pulping of Wheat Straw

被引：10

作者：

Dedhia, Bhavin S. ^{[1
]}

Csoka, Levente ^{[2
]}

Rathod, Virendra K. ^{[1
]}

机构：

[1] Inst Chem Technol, Dept Chem Engn, Bombay 400019, Maharashtra, India

[2] Univ W Hungary, Inst Wood & Paper Technol, H-9400 Sopron, Hungary

来源：

APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY | 2012年 / 168卷 / 04期

关键词：

Wheat straw; Lignin; Pulping; Kappa number; Xylanase; Ultrasound; WATER MIXTURES;

D O I：

10.1007/s12010-012-9813-6

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

In the present work, a novel approach to pretreat wheat straw pulping was investigated with ultrasound and xylanase to achieve maximum reduction in lignin content. Sequential xylanase pretreatment and alkaline pulping was found to reduce kappa number by 0.31 to 4.84 % compared with only alkaline pulping alone at different pulping conditions. Although Klason lignin of ultrasound-treated straw was found to be 7.37 % less compared with untreated straw, sequential ultrasound pretreatment and alkaline pulping could not show any significant reduction in kappa number compared with alkaline pulping alone. Also, sequential xylanase and ultrasound pretreatment could not show any significant reduction in kappa number. Total yield of the pulp was found to be less in ultrasound-assisted processing compared with both alkaline pulping alone and sequential xylanase pretreatment and alkaline pulping.

引用

页码：731 / 741

页数：11