期刊
PROCESS BIOCHEMISTRY
卷 47, 期 12, 页码 2110-2115出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.procbio.2012.07.031
关键词
Saccharification; Fermentation; Cellulose; Pectin; Acremonium cellulolyticus
In this study, the saccharification and fermentation of the by-product of starch manufacture, potato pulp, were investigated. Analytic results of the components show that the potato pulp contains large amounts of starch, cellulose, and pectin. A commercial enzyme from Acremonium cellulolyticus was found to be highly efficient in the saccharification of potato pulp, since it exhibited high pectinase, alpha-amylase, and cellulase activities. Hydrothermal treatment of the potato pulp increased the saccharification rate, with a corresponding glucose concentration of 114g/L and yield of 68% compared to the glucose concentration of 47 g/L and yield of 28% in the untreated case. The hydrolyzate could be used as both nitrogen and carbon sources for ethanol fermentation, showing that bioconversion of potato pulp to ethanol is feasible. (C) 2012 Elsevier Ltd. All rights reserved.
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