Production of ethanol from potato pulp: Investigation of the role of the enzyme from Acremonium cellulolyticus in conversion of potato pulp into ethanol

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논문

Production of ethanol from potato pulp: Investigation of the role of the enzyme from Acremonium cellulolyticus in conversion of potato pulp into ethanol

학술지

Process biochemistry

저자명

Gao, M.T.; Yano, S.; Inoue, H.; Sakanishi, K.

초록

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, α-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 47g/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.

발행연도

2012

발행기관

Elsevier Applied Science

ISSN

1359-5113

권

호

페이지

pp.2110-2115

DOI

10.1016/j.procbio.2012.07.031