Preliminary exploration on pretreatment with metal chlorides and enzymatic hydrolysis of bagasse

被引：29

作者：

Chen, Liheng ^{[1
]}

Chen, Rong ^{[1
]}

Fu, Shiyu ^{[1
]}

机构：

[1] S China Univ Technol, State Key Lab Pulp & Paper Engn, Guangzhou 510640, Guangdong, Peoples R China

来源：

BIOMASS & BIOENERGY | 2014年 / 71卷

基金：

中国国家自然科学基金;

关键词：

Sugarcane bagasse; pKa value; Metal chloride Lewis acid; Pretreatment; Cellulase hydrolysis; ETHANOL-PRODUCTION; SUGARCANE BAGASSE; PRODUCT FORMATION; BIOMASS; SACCHARIFICATION; MECHANISM; FEATURES; STRAW; ACID;

D O I：

10.1016/j.biombioe.2014.09.026

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Converting biomass to fermentable sugar is the critical step in the biomass refinery. Moreover, pretreatment of biomass plays an important role in improving the conversion of biomass to sugar. In this study, sugarcane bagasse was pretreated by metal chloride Lewis acids (0.1 mol L-3 CrCl3, FeCl3, FeCl2, ZnCl2 and AlCl3 solution) for cellulase hydrolysis. The effects of pretreatments on the yield, chemical components, and sequential cellulase hydrolysis of pretreated bagasse were investigated. The results indicated that metal chlorides with different pKa values could efficiently remove the hemicellulose in bagasse during pretreatment. Furthermore, an inhibition factor (IF) quantitatively reflecting difficulty of cellulase hydrolysis was proposed. The low IF means the facile cellulase hydrolysis. The IF of Fe (III)-pretreated bagasse could decrease to 1.35. In this case, the enzymatic digestibility of bagasse approached to 100%. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：311 / 317

页数：7

共 23 条

[1]

[Anonymous], 2010, NRELTP51042618

[2] Wet explosion pretreatment of sugarcane bagasse for enhanced enzymatic hydrolysis [J].

Biswas, Rajib ;

Uellendahl, H. ;

Ahring, B. K. .

BIOMASS & BIOENERGY, 2014, 61 :104-113

[3] Use of different alkaline pretreatments and enzyme models to improve low-cost cellulosic biomass conversion [J].

Chen, Bo-Yuan ;

Chen, Shiau-Wei ;

Wang, Han-Tsung .

BIOMASS & BIOENERGY, 2012, 39 :182-191

[4] Enhanced Cellulase Hydrolysis of Eucalyptus Waste Fibers from Pulp Mill by Tween80-Assisted Ferric Chloride Pretreatment [J].

Chen, Liheng ;

Fu, Shiyu .

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 2013, 61 (13) :3293-3300

[5] Disk Refining and Ultrasonication Treated Sugarcane Bagasse Residues for Poly(Vinyl Alcohol) Bio-composites [J].

Cheng, Qingzheng ;

Tong, Zhaohui ;

Dempere, Luisa ;

Ingram, Lonnie ;

Wang, Letian ;

Zhu, J. Y. .

JOURNAL OF POLYMERS AND THE ENVIRONMENT, 2013, 21 (03) :648-657

[6] THE EFFECT OF CHEMICAL AND PHYSIOLOGICAL FACTORS ON THE KINETICS FOR PRODUCT FORMATION AS IT RELATES TO ENZYME-ACTIVITY AND CONCENTRATION, REACTION-TIME AND TO SUBSTRATE ADSORPTION AND AFFINITY [J].

CHRASTIL, J ;

WILSON, JT .

INTERNATIONAL JOURNAL OF BIOCHEMISTRY, 1982, 14 (01) :1-17

[7] ENZYMIC PRODUCT FORMATION CURVES WITH THE NORMAL OR DIFFUSION LIMITED REACTION-MECHANISM AND IN THE PRESENCE OF SUBSTRATE RECEPTORS [J].

CHRASTIL, J .

INTERNATIONAL JOURNAL OF BIOCHEMISTRY, 1988, 20 (07) :683-693

[8] Saccharification of recalcitrant biomass and integration options for lignocellulosic sugars from Catchlight Energy's sugar process (CLE Sugar) [J].

Gao, Johnway ;

Anderson, Dwight ;

Levie, Benjamin .

BIOTECHNOLOGY FOR BIOFUELS, 2013, 6

[9] Effects and Mechanism of Metal Chloride Salts on Pretreatment and Enzymatic Digestibility of Corn Stover [J].

Kamireddy, Srinivas R. ;

Li, Jinbao ;

Tucker, Melvin ;

Degenstein, John ;

Ji, Yun .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2013, 52 (05) :1775-1782

[10] Pretreatment of rapeseed straw by soaking in aqueous ammonia [J].

Kang, Kyeong Eop ;

Jeong, Gwi-Taek ;

Sunwoo, Changshin ;

Park, Don-Hee .

BIOPROCESS AND BIOSYSTEMS ENGINEERING, 2012, 35 (1-2) :77-84

← 1 2 3 →