文献类型：期刊文献

英文题名：Production of Xylose from Diluted Sulfuric Acid Hydrolysis of Wheat Straw

作者：Ji, Xingxiang[1,2] Ma, Hao[2] Tian, Zhongjian[2] Lyu, Gaojin[2] Fang, Guigan[1] Chen, Jiachuan[2] Saeed, Haroon A. M.[2,3]

第一作者：Ji, Xingxiang

通信作者：Fang, GG[1];Ma, H[2]|[a000589b6171897e30b38]房桂干;

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Nanjing 210009, Jiangsu, Peoples R China;[2]Qilu Univ Technol, Key Lab Pulp & Paper Sci & Technol, Minist Educ, Jinan 250353, Shandong, Peoples R China;[3]Univ Gezira, Fac Text, Ctr Fibers Papers & Recycling, Box 20, Wad Madani, Sudan

年份：2017

卷号：12

期号：4

起止页码：7084-7095

外文期刊名：BIORESOURCES

收录：;EI(收录号：20174504363713);Scopus(收录号：2-s2.0-85032618502);WOS:【SCI-EXPANDED(收录号:WOS:000422879900014)】；

基金：The authors are grateful for financial support from the National Science Foundation of China (Grant No. 31670590, 31400511, 31370580, 31670595, and 31400517) and the Taishan Scholars Program of Shandong Province.

语种：英文

外文关键词：Wheat straw hemicellulose; Sulfuric acid; Xylose; Crystallinity

摘要：The objectives of this study were to generate fermentable xylose by sulfuric acid hydrolysis of wheat straw and investigate the effect of hemicellulose removal on the physical and chemical properties of the unhydrolyzed solid residue (USR). Different reaction conditions, including concentration of sulfuric acid (COS), temperature, and time, were tested for their effects on the yield of xylose and the USR. The ideal hydrolysis conditions for xylose production were 0.5% of COS at 140 degrees C for 90 min, with the xylose yield of 0.185 g/g wheat straw. The Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) analyses showed that the acid hydrolysis only caused slight changes in the functional groups and the crystal form of wheat straw at mild conditions, while higher temperature or higher COS exacerbated these changes.