Continuous fermentation using low concentration of sugar cane and Zymomonas mobilis CP4 for ethanol production
DOI:
https://doi.org/10.5433/1679-0375.2001v22n1p47Keywords:
Sucrose, Ethanol, Continuous Culture, Dilution Rate.Abstract
Effect of dilution rate in continuous fermentation of 20g sucrose/L and Z. mobilis CP4 was studied for ethanol production at 28oC + 1, without pH control. Four dilution rates were compared: 0.045; 0.14; 0.23 and 0.34 h-1. In dilution rates 0.045; 0.14 and 0.23 h-1 were produced 9,4g/L of ethanol and in dilution rate 0.34 h-1 was produced 8,8 g/L. Ethanol conversion efficiency were of 91% in dilution rates 0.045; 0.14 and 0. 23 h-1. In dilution rate 0.34 h-1 the conversion efficiency was of 85%.
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