Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7080711 | Bioresource Technology | 2013 | 5 Pages |
Abstract
The present work investigated the effects of subcritical CO2 pretreatment of sugarcane bagasse at different CO2 pressure, pretreatment time, and temperature with relative high-solid concentration (15% w/v) to the composition of prehydrolyzate and the enzymatic hydrolysis. The results indicated that the maximum xylose yields in prehydrolyzate liquid were 15.78Â g (combined 3.16Â g xylose and 12.62Â g xylo-oligosaccharides per 100Â g raw material). Due to the effective removal of hemicellulose, the maximum glucose yield in enzyme hydrolyzate reached 37.99Â g per 100Â g raw material, representing 91.87% of glucose in the sugarcane bagasse. The maximal total sugars yield (combined xylose and glucose both in prehydrolyzate and enzymatic hydrolyzate) were 52.95Â g based on 100Â g raw material. These results indicated that subcritical CO2 pretreatment can effectively improve the enzymatic hydrolysis, so it could be successfully applied to sugarcane bagasse.
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Physical Sciences and Engineering
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Authors
Hongdan Zhang, Shubin Wu,