Wet explosion pretreatment of sugarcane bagasse for enhanced enzymatic hydrolysis

被引：45

作者：

Biswas, Rajib ^{[1
,2
]}

Uellendahl, H. ^{[1
]}

Ahring, B. K. ^{[1
,2
]}

机构：

[1] Aalborg Univ, Sect Sustainable Biotechnol, Copenhagen, Denmark

[2] Washington State Univ, Ctr Bioprod & Bioenergy, Richland, WA 99354 USA

来源：

BIOMASS & BIOENERGY | 2014年 / 61卷

关键词：

Lignocellulosic feedstock; Sugarcane bagasse; Wet explosion pretreatment; Enzymatic hydrolysis; Fermentable sugars; ETHANOL-PRODUCTION; AGROINDUSTRIAL RESIDUES; ACID PRETREATMENT; WHEAT-STRAW; OXIDATION; TECHNOLOGIES; BIOETHANOL; FERMENTATION; INHIBITORS; CONVERSION;

D O I：

10.1016/j.biombioe.2013.11.027

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Wet explosion pretreatment of sugarcane bagasse was investigated in pilot-scale with the aim of obtaining the highest possible sugar yield after pretreatment. The temperatures used were 155, 170, 185 and 200 C with or without addition of oxygen (0.6 MPa pressure). Enzymatic hydrolysis of washed solid cakes was carried out using two loadings of enzyme mixtures as enzyme protein (EP) on cellulose was 12.4 and 22.0 g kg(-1). After hydrolysis, a pretreatment temperature of 185 C with oxygen yielded the highest glucose concentration of 573.9 +/- 4.5 g kg(-1) TS and a glucose yield of 87.4 +/- 0.7% of the theoretical maximum value. Pretreatment at 200 degrees C with oxygen exhibited enhanced enzymatic efficiency but lower xylose recovery and formation of the degradation products such as acetate, furfural and HMF of 7.6, 3.3 and 1.0 g L-1, respectively. In the hydrolysis, the total sugars (glucose + xylose) yielded at 185 degrees C and 200 degrees C with oxygen were 615.9 +/- 4.5 and 584.5 +/- 3.1 g kg(-1) TS, respectively. (C) 2013 Published by Elsevier Ltd.

引用

页码：104 / 113

页数：10

共 33 条

[1]

Ahring B.K., 2009, U.S. Patent, Patent No. [20090178671A1, 20090178671, US 2009/0178671 Al]

[2] Pretreatment technologies for an efficient bioethanol production process based on enzymatic hydrolysis: A review [J].

Alvira, P. ;

Tomas-Pejo, E. ;

Ballesteros, M. ;

Negro, M. J. .

BIORESOURCE TECHNOLOGY, 2010, 101 (13) :4851-4861

[3]

Baird R.B., 2005, Standard methods for the examination of water and wastewater

[4] Fermentable sugars by chemical hydrolysis of biomass [J].

Binder, Joseph B. ;

Raines, Ronald T. .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2010, 107 (10) :4516-4521

[5] Conversion of C6 and C5 sugars in undetoxified wet exploded bagasse hydrolysates using Scheffersomyces (Pichia) stipitis CBS6054 [J].

Biswas, Rajib ;

Uellendahl, Hinrich ;

Ahring, Birgitte K. .

AMB EXPRESS, 2013, 3 :1-7

[6] Improving biogas yields using an innovative concept for conversion of the fiber fraction of manure [J].

Biswas, Rajib ;

Ahring, B. K. ;

Uellendahl, H. .

WATER SCIENCE AND TECHNOLOGY, 2012, 66 (08) :1751-1758

[7]

Bjerre AB, 1996, BIOTECHNOL BIOENG, V49, P568, DOI 10.1002/(SICI)1097-0290(19960305)49:5<568::AID-BIT10>3.3.CO

[8]

2-4

[9]

Bjornsson L, 2012, United States Patent, Patent No. [US 2012/0156727 Al, 20120156727]

[10] Production of bioethanol from sugarcane bagasse: Status and perspectives [J].

Cardona, C. A. ;

Quintero, J. A. ;

Paz, I. C. .

BIORESOURCE TECHNOLOGY, 2010, 101 (13) :4754-4766

← 1 2 3 4 →