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J Biosci Bioeng. 2011 Mar;111(3):343-5. doi: 10.1016/j.jbiosc.2010.11.012. Epub 2010 Dec 15.

Strategy for preventing bacterial contamination by adding exogenous ethanol in solid-state semi-continuous bioethanol production.

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  • 1Department of Life Science and Bioengineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, 3-3-35 Tamate-cho, Suita-shi, Osaka 564-8680, Japan.


A strategy for preventing reduction of ethanol yield in fermentation caused by bacterial contamination was developed. In solid-state ethanol fermentation in which saccharification, fermentation and ethanol recovery are performed simultaneously, the addition of exogenous ethanol to the fermentation mixture at the start of fermentation at 50 g kg(-1) prevented contamination, and the ethanol yield reached 0.50 g g(-1).

Copyright © 2010 The Society for Biotechnology, Japan. Published by Elsevier B.V. All rights reserved.

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