Continuous production of ethanol from fructose by immobilized growing cells of Zymomonas mobilis |
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Authors: | Jain W K Toran-Diaz I Baratti J |
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Institution: | Université de Provence, C.N.R.S. Laboratoire de Chimie, Bactérienne, B.P. 71, 13277 Marseille Cedex 9, France. |
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Abstract: | Immobilized growing cells of Zymomonas mobilis were found to ferment rapidly and efficiently media containing 100 g/L fructose in a continuous reactor. A volumetric ethanol productivity of 94.8 g/L h was achieved at a substrate conversion of 75.5%. With 97% conversion of substrate the productivity was 28.4 g/L h. At fructose concentrations of 150 and 200 g/L substrate and product inhibitions limited the performance of the reactor. Ethanol production was constant over a period of 55 days. |
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