期刊
CARBOHYDRATE POLYMERS
卷 156, 期 -, 页码 351-356出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2016.09.044
关键词
Steam explosion; Acids; Crystallinity; Surface area; Lignin content
资金
- National Natural Science Foundation of China [U1432109]
- China Scholarship Council [201606885004]
In this work, acid-catalyzed steam explosion was carried out as a pretreatment to hydrolyze hemicellulose and increase the enzymatic digestibility of corncob. Pretreatment conditions were varied to achieve structural alterations in a wide range: type of acids (sulfuric acid and oxalic acid), acid concentration (0.1-1.5 wt.%) and pressure (1.0-1.8 MPa). The pretreated residues were analyzed by chemical analysis, surface area measurement and x-ray diffraction. Biomass and cellulose crystallinity, lignin content and specific surface area were obtained and their correlations with sugar conversion were compared. The results suggested that these parameters were coupled together and they explained in part the diversity of the literature data that improves understanding of steam explosion pretreatment. (C) 2016 Elsevier Ltd. All rights reserved.
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