Optimization of fermentable sugar production from rape straw through hydrothermal acid pretreatment

被引：27

作者：

Jeong, Tae Su ^{[1
]}

Oh, Kyeong Keun ^{[1
]}

机构：

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

来源：

BIORESOURCE TECHNOLOGY | 2011年 / 102卷 / 19期

关键词：

Rape straw; Combined severity; Acid hydrolysis; Inhibitory compound; CANDIDA-GUILLIERMONDII; HYDROLYSIS; WOOD;

D O I：

10.1016/j.biortech.2011.06.092

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Operational conditions for the hydrolysis of rape straw were optimized using the combined severity index (CS), which combines the effects of time, temperature, and acid concentration into a single parameter. The sugar recovery yield was 77.8% of the theoretical yield at a value of CS = 1.3. A maximum concentration of xylose of 7.22 g/L was obtained when the straw was treated for 10 min at a low reaction temperature (150 degrees C) and high acid concentration (pH 1.17). The pentose-rich hydrolyzate exhibited a low concentration of fermentation-inhibiting compounds. The concept of CS can be conveniently and effectively applied for optimization of pretreatments. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：9261 / 9266

页数：6

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