Complete and efficient enzymic hydrolysis of pretreated wheat straw

被引：86

作者：

Curreli, N

Agelli, M

Pisu, B

Rescigno, A

Sanjust, E

Rinaldi, A

机构：

[1] Univ Cagliari, Cattedra Chim Biol, Dipartimento Sci Med Internist, I-09042 Monserrato, CA, Italy

[2] Univ Pisa, Dipartimento Econ Agricoltura Ambiente Agroforest, Pisa, Italy

来源：

PROCESS BIOCHEMISTRY | 2002年 / 37卷 / 09期

关键词：

lignocellulosics; wheat straw; pretreatments; cellulase; glucose; xylose;

D O I：

10.1016/S0032-9592(01)00301-6

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：

A fractionation of wheat straw components in a two-step chemical pretreatment is proposed. Hemicelluloses were hydrolysed by dilute sulphuric acid, allowing a substantial recovery of crystalline xylose. Lignin was removed by means of a mild alkaline/oxidative solubilisation procedure, involving no sulphite or chlorine and its derivatives. The use of diluted reagents and relatively low temperatures, was both cheap and environmentally friendly. The pretreated material was nearly pure cellulose, whose enzymic hydrolysis proceeded fast and with high yields, leading to high glucose syrups of remarkable purity. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：937 / 941

页数：5

共 24 条

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