Ethanol production in a hollow fiber bioreactor using Saccharomyces cerevisiae |
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Authors: | Mohamed A. Mehaia Munir Cheryan |
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Affiliation: | (1) Department of Food Science, 382D Agricultural Engineering Sciences Building, University of Illinois, 1304 W. Pennsylvania Avenue, 61801 Urbana, IL, USA |
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Abstract: | Summary A new approach for continuous production of ethanol was developed using a Hollow fiber fermentor (HFF). Saccharomyces cerevisiae cells were packed into the shell-side of a hollow fiber module. Using 100 g/l glucose in the feed gave an optimum ethanol productivity, based on total HFF volume, of 40 g ethanol/l/h at a dilution rate of 3.0 h-1. Under these conditions, glucose utilization was 30%. However, at 85% glucose utilization the productivity was 10 g ethanol/l/h. This compares to batch fermentor productivity of 2.1 g ethanol/l/h at 100% glucose utilization. |
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