The production of ethanol by Zymomonas mobilis NRRL B‐4286 was studied in fed‐batch cultures. Initial percent (w/v) glucose, rate of feed, and quantity of 50%; (w/v) glucose feed were varied. Glucose inhibition of growth rate occurred at concentrations greater than 8% (w/) Feed was begun after 4 h incubation. Feed volume was ca. 36%; of starting batch volume to get ca. 10%; (w/v) ethanol at harvest. The range of feed rates studied varied from 16%; batch volume/h (glucose concentration increased to an inhibitory level) to 4%; batch volume/h (glucose concentration dropped rapidly to zero and was limiting). Increasing feed volume to 46%; of starting volume at the best feed rate (ca. 10%; feed volume/h) increased final ethanol concentration to 11.3%; (w/v). However, the resultant increase in fermentation time from ca. 21 to 29 h decreased ethanol volumetric productivity from 5.2 to 4.6 g/L h. Copyright © 1984 John Wiley & Sons, Inc.
CITATION STYLE
Rogers, P. L., Lee, K. J., Skotnicki, M. L., & Tribe, D. E. (1982). Ethanol production by Zymomonas mobilis (pp. 37–84). https://doi.org/10.1007/3540116982_2
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