Production of Xylose from Diluted Sulfuric Acid Hydrolysis of Wheat Straw

被引：26

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
]}

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

来源：

BIORESOURCES | 2017年 / 12卷 / 04期

基金：

美国国家科学基金会;

关键词：

Wheat straw hemicellulose; Sulfuric acid; Xylose; Crystallinity; ENZYMATIC-HYDROLYSIS; PARTICLE-SIZE; HEMICELLULOSE; FIBERS; MONOSACCHARIDES; OPTIMIZATION; CONVERSION; BAGASSE; WOOD;

D O I：

10.15376/biores.12.4.7084-7095

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

0805 ; 080502 ; 0822 ;

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.

引用

页码：7084 / 7095

页数：12

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