Continuous alcoholic fermentation withSaccharomyces cerevisiae recycle by tangential filtration: Key points for process modelling |
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| Authors: | C Lafforgue-Delorme P Delorme G Goma |
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| Institution: | (1) Département de Génie Biochimique et Alimentaire, Lab. Ass. INRA, URA CNRS 544, Centre de Bioengéniérie Gilbert Durand Institut National des Sciences Appliquées, Complexe Scientifique de Rangueil, 31077 Toulouse Cédex, France |
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| Abstract: | Summary A mathematical model, taking in count ethanol inhibition and limitation effects with emphasis to phenomena linked to biomass
is proposed. Notions of critical cell concentrations, corresponding to the appearance of inhibition or limitation effects
and transfer limitations are introduced. Available space for yeast growth is also considered. The agreement between simulation
and experimental results demonstrates that this model is sufficiently reliable for predictive performance of bioreactors with
high cell concentrations. |
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