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Simulation and optimization of fed-batch culture for ethanol production from molasses

✍ Scribed by S. Limtong; M. Kishimoto; T. Seki; T. Yoshida; H. Taguchi

Publisher: Springer
Year: 1987
Tongue: English
Weight: 572 KB
Volume: 2
Category: Article
ISSN: 1615-7605
DOI: 10.1007/bf00387321

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✦ Synopsis

Two simulation methods for ethanol production from molasses by a flocculating yeast, Saccharomyces cerevisiae AM 12, were investigated and molasses feeding was optimized. The first method was based on a deterministic model with fixed kinetic parameters and the second was based on regression analysis. The amount of ethanol produced in a fed-batch culture with multiple additions of molasses was simulated by both of these two methods. Simulated results of a fed-batch culture were compared with those of a simple batch culture by a model of regression analysis. The intermittent addition of molasses gave better production than a single addition at the beginning; more frequent addition may further improve production. The experimental results suggested the same. The effect of the amount of the added molasses on ethanol production was investigated by simulation. Repeated batch culture with and without intermittent addition of molasses in each batch was also done.

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