Examination of immobilized cells in a rotating packed drum reactor for the production of ethanol from d-glucose |
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Authors: | Chang Woo Lee Ho Nam Chang |
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Affiliation: | Department of Chemical Engineering, Korea Advanced Institute of Science and Technology, P.O. Box 131, Dongdaemun, Seoul, Korea |
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Abstract: | A rotating packed drum reactor has been proposed as an immobilized whole cell reactor and its performance for ethanol production has been studied with yeast cells immobilized in calcium alginate gel. In a continuous operation with synthetic d-glucose medium containing 125 g d-glucose l?1, ethanol productivity was 20 g l?1 h?1 at a space velocity of 0.38 l (l gel)?1 h?1. With intermittent aeration the viability of yeast cells after 270 h of operation remained above 65%. CO2 removal was easy, but d-glucose conversion was low at a high space velocity. |
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Keywords: | Ethanol fermentation bioreactor immobilized cells Saccharomyces cerevisiae |
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