Kinetic Studies on Alcoholic Fermentation Under Substrate Inhibition Conditions Using a Bioreactor with Stirred Bed of Immobilized Yeast Cells
نویسنده
چکیده
The studies on the alcoholic fermentation with immobilized S. cerevisiae cells on alginate using a bioreactor with stirred beds of biocatalysts indicated that the diffusion inside the biocatalyst particles attenuates or avoids the inhibitory effects, preserving the microbial activity. Using a mathematical model adequate for ethanol formation in heterogeneous systems the kinetic parameters V, KI and K’M have been estimated. Therefore, the obtained values of V and K’M were found to be higher than those corresponding to the homogeneous media under ethanol inhibition, but lower than those for homogeneous media without inhibitory fenomena.
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