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Optimization of two-stage continuous ethanol fermentation using flocculating yeast

โœ Scribed by Hiroshi Kuriyama; Hiroki Ishibashi; Hisashi Miyagawa; Harumi Kobayashi; Eichi Mikami

Publisher
Springer Netherlands
Year
1993
Tongue
English
Weight
440 KB
Volume
15
Category
Article
ISSN
0141-5492

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โœฆ Synopsis

Two-stage two-stream continuous ethanol fermentation using flocculating yeast was studied to produce high ethanol concentration from blackstrap cane-molasses. Optimizing pH, RQ, cell concentration, and medium molasses concentration of the first stage to give a good cell yield without a significant decrease in ethanol yield, the final ethanol concentration of as high as 92.0~93.5 g/l at an overall dilution rate of 0.10 1/h was obtained. This process could work stably as long as 3 weeks without any decreases in the efficiency.

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