Improved enzyme efficiency of rapeseed straw through the two-stage fractionation process using sodium hydroxide and sulfuric acid

被引：27

作者：

Choi, Chang Ho ^{[1
]}

Um, Byung Hwan ^{[2
]}

Kim, Young Soo ^{[1
]}

Oh, Kyeong Keun ^{[1
]}

机构：

[1] Dankook Univ, Dept Appl Chem Engn, Cheonan 330714, Chungnam, South Korea

[2] Hankyong Natl Univ, Dept Chem Engn, Anseong 456749, Gyeonggi Do, South Korea

来源：

APPLIED ENERGY | 2013年 / 102卷

关键词：

Pretreatment; Two-stage process; Enzymatic digestibility; Brassica napus; Lignin removal; AQUEOUS AMMONIA; SIMULTANEOUS SACCHARIFICATION; WHEAT-STRAW; CORN STOVER; LIGNOCELLULOSIC BIOMASS; BIOETHANOL PRODUCTION; PRETREATMENT; FERMENTATION; OPTIMIZATION; HYDROLYSIS;

D O I：

10.1016/j.apenergy.2012.08.011

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Two-stage fractionation process using sodium hydroxide and sulfuric acid was conducted to remove lignin and hemicellulose from rapeseed (Brassica napus) straw. This process consists of two stages; using sodium hydroxide, the first stage solubilized 35.54% of lignin and increased the glucan content in the treated solid from 32.86% to 38.13%. The second stage solubilized 85.85% of the lignin and 91.56% of the XMG (Xylan + Mannan + Galactan) into hydrolyzate. After the two-stage process, merely 2.53% of glucan and 3.81% of XMG were lost due to excessive decomposition. Despite the reduction in enzyme loading by 50%, the enzymatic digestibility with the two-stage treated straw was approximately 23% higher than that of the single stage acid fractionation process. (c) 2012 Elsevier Ltd. All rights reserved.

引用

页码：640 / 646

页数：7

共 40 条

[1] High temperature pretreatment and hydrolysis of cotton stalk for producing sugars for bioethanol production [J].

Binod, Parameswaran ;

Kuttiraja, Mathiyazhakan ;

Archana, Mohan ;

Janu, Kanakambaran Usha ;

Sindhu, Raveendran ;

Sukumaran, Rajeev K. ;

Pandey, Ashok .

FUEL, 2012, 92 (01) :340-345

[2] Hydrothermal pretreatment of rice straw biomass: A potential and promising method for enhanced methane production [J].

Chandra, R. ;

Takeuchi, H. ;

Hasegawa, T. .

APPLIED ENERGY, 2012, 94 :129-140

[3] Simultaneous saccharification and fermentation of steam exploded wheat straw pretreated with alkaline peroxide [J].

Chen, Hongzhang ;

Han, Yejun ;

Xu, Jian .

PROCESS BIOCHEMISTRY, 2008, 43 (12) :1462-1466

[4] Xylose and cellulose fractionation from corncob with three different strategies and separate fermentation of them to bioethanol [J].

Chen, Yefu ;

Dong, Boyu ;

Qin, Weijun ;

Xiao, Dongguang .

BIORESOURCE TECHNOLOGY, 2010, 101 (18) :6994-6999

[5] Ethanol Production from Sugarcane Bagasse by Zymomonas mobilis Using Simultaneous Saccharification and Fermentation (SSF) Process [J].

dos Santos, Danielle da Silveira ;

Camelo, Anna Carolina ;

Pedro Rodrigues, Kelly Cristina ;

Carlos, Luis Claudio ;

Pereira, Nei, Jr. .

APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY, 2010, 161 (1-8) :93-105

[6] Investigation of biomass degradation mechanism in pretreatment of switchgrass by aqueous ammonia and sodium hydroxide [J].

Gupta, Rajesh ;

Lee, Y. Y. .

BIORESOURCE TECHNOLOGY, 2010, 101 (21) :8185-8191

[7] Pretreatments to enhance the digestibility of lignocellulosic biomass [J].

Hendriks, A. T. W. M. ;

Zeeman, G. .

BIORESOURCE TECHNOLOGY, 2009, 100 (01) :10-18

[8]

HIMMEL ME, 1994, ACS SYM SER, V566, P411

[9] A review of separation technologies in current and future biorefineries [J].

Huang, Hua-Jiang ;

Ramaswamy, Shri ;

Tschirner, U. W. ;

Ramarao, B. V. .

SEPARATION AND PURIFICATION TECHNOLOGY, 2008, 62 (01) :1-21

[10] Sulfuric acid bleaching of kraft pulp II: Behavior of lignin and carbohydrate during sulfuric acid bleaching [J].

Ikeda, T ;

Tomimura, Y ;

Magara, K ;

Hosoya, S .

JOURNAL OF WOOD SCIENCE, 1999, 45 (04) :313-318

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