文献类型：期刊文献

英文题名：Comparison of aqueous ammonia and dilute acid pretreatment of bamboo fractions: Structure properties and enzymatic hydrolysis

作者：Xin, Donglin[1] Yang, Zhong[2] Liu, Feng[1] Xu, Xueru[1] Zhang, Junhua[1]

第一作者：Xin, Donglin

通信作者：Zhang, JH[1]

机构：[1]Northwest A&F Univ, Coll Forestry, Yangling 712100, Peoples R China;[2]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China

年份：2015

卷号：175

起止页码：529-536

外文期刊名：BIORESOURCE TECHNOLOGY

收录：;EI(收录号：20144700223267);Scopus(收录号：2-s2.0-84910637776);WOS:【SCI-EXPANDED(收录号:WOS:000345689900068)】；

基金：This work was supported by the Natural Science Foundation of China (No. 31270622). The authors are grateful to Prof. Jinzhong Xie (Research Institute of Subtropical Fores try, Chinese Academy of Forestry, China) for assistance in the collection of bamboos.

语种：英文

外文关键词：Bamboo fractions; Aqueous ammonia pretreatment; Dilute acid pretreatment; Structure properties; Enzymatic hydrolysis

摘要：The effect of two pretreatments methods, aqueous ammonia (SAA) and dilute acid (DA), on the chemical compositions, cellulose crystallinity, morphologic change, and enzymatic hydrolysis of bamboo fractions (bamboo yellow, timber, green, and knot) was compared. Bamboo fractions with SAA pretreatment had better hydrolysability than those with DA pretreatment. High crystallinity index resulted in low hydrolysis yield in the conversion of SAA pretreated bamboo fractions, not DA pretreated fractions. The increase of cellulase loading had modestly positive effect in the hydrolysis of both SAA and DA pretreated bamboo fractions, while supplement of xylanase significantly increased the hydrolysis of the pretreated bamboo fractions, especially after SAA pretreatment. The results indicated that SAA pretreatment was more effective than DA pretreatment in conversion of bamboo fractions, and supplementation of xylanase was necessary in effective conversion of the SAA pretreated fractions into fermentable sugars. (C) 2014 Elsevier Ltd. All rights reserved.