Summary
The effect of high glucose concentrations on continuous ethanol production by passively immobilized Zymomonas mobilis cells has been studied. High effluent ethanol concentrations always led to low productivities. The maximum ethanol concentration attained was 92.8 g/l (98% glucose conversion) at a dilution rate of 0.14 h-1 with 200 g/l glucose medium. The observed enhancement of cell immobilization in the fibrous support at high glucose concentrations in the feed input seems to be related to the formation of bacterial filaments.
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Castellar, M.R., Borrego, F., Cánovas, M. et al. Continuous ethanol production at high glucose concentrations by a passively immobilized Zymomonas mobilis system. Appl Microbiol Biotechnol 31, 249–252 (1989). https://doi.org/10.1007/BF00258404
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DOI: https://doi.org/10.1007/BF00258404