Pulp properties resulting from different pretreatments of wheat straw and their influence on enzymatic hydrolysis rate

被引：19

作者：

Rossberg, Christine ^{[1
]}

Steffien, Doreen ^{[2
]}

Bremer, Martina ^{[1
]}

Koenig, Swetlana ^{[3
]}

Carvalheiro, Florbela ^{[4
]}

Duarte, Luis C. ^{[4
]}

Moniz, Patricia ^{[4
]}

Hoernicke, Max ^{[3
]}

Bertau, Martin ^{[2
]}

Fischer, Steffen ^{[1
]}

机构：

[1] Tech Univ Dresden, Inst Plant & Wood Chem, D-01723 Tharandt, Germany

[2] Freiberg Univ Min & Technol, Inst Chem Technol, D-09595 Freiberg, Germany

[3] Univ Leipzig, Saxon Inst Appl Biotechnol, D-04318 Leipzig, Germany

[4] Unidade Bioenergia, IP, Lab Nacl Energia & Geol, P-1649038 Lisbon, Portugal

来源：

BIORESOURCE TECHNOLOGY | 2014年 / 169卷

关键词：

Alkaline pulping; Natural pulping; Autohydrolysis; Wheat straw; Enzymatic hydrolysis; LIGNIN; DELIGNIFICATION; ETHANOL; BIOMASS; IMPACT; INHIBITION; CELLULOSE; SODA;

D O I：

10.1016/j.biortech.2014.06.100

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Wheat straw was subjected to three different processes prior to saccharification, namely alkaline pulping, natural pulping and autohydrolysis, in order to study their effect on the rate of enzymatic hydrolysis. Parameters like medium concentration, temperature and time have been varied in order to optimize each method. Milling the raw material to a length of 4 mm beforehand showed the best cost-value-ratio compared to other grinding methods studied. Before saccharification the pulp can be stored in dried form, leading to a high yield of glucose. Furthermore the relation of pulp properties (i.e. intrinsic viscosity, KLASON-lignin and hemicelluloses content, crystallinity, morphology) to cellulose hydrolysis is discussed. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：206 / 212

页数：7