期刊
BIORESOURCE TECHNOLOGY
卷 143, 期 -, 页码 391-396出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2013.05.103
关键词
Sugarcane bagasse; Liquid hot water pretreatment; Oligosaccharides; Enzymatic hydrolysis
资金
- National High Technology Research and Development Program of China [2012AA101806]
- National Key Basic Research Program of China [2013CB228101]
- National Natural Science Foundation of China [31270625, 21176095]
Lignocellulosic biomass can be utilized to produce promising biofuels. In this study, liquid hot water pretreatments were performed to break the intricate structure of sugarcane bagasse, which resists the enzyme accessibility to cellulose. The effects of temperatures and times on the hemicellulose degradation (including the yields of pentoses and hexoses, the proportion of monomers and oligosaccharides, as well as limited inhibitors) and cellulose enzymatic digestibility were evaluated. The results indicated that the maximum xylose yields (combined 3.85 g xylose and 13.21 g xylo-oligosaccharides per 100 g raw material) in prehydrolyzate liquid were obtained at 180 degrees C and 30 min. Due to the effective removal of hemicellulose, the maximum glucose yield in enzyme hydrolyzate reached 37.27 g per 100 g raw material, representing 90.13% of glucose in the sugarcane bagasse. The maximal total sugars yield (combined prehydrolyzate and enzymatic hydrolyzate) were 53.65 g based on 100 g raw material. (C) 2013 Elsevier Ltd. All rights reserved.
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