EXTRACTIVE ETHANOL-PRODUCTION IN A MEMBRANE CELL RECYCLE BIOREACTOR

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Ethanol production kinetics of free Saccharomyces cerevisiae cells was compared in a continuous reactor and a cell recycle membrane reactor, with and without solvent extraction. In the continuous culture the in-situ extraction using dibutyl phthalate increased glucose conversion from 45% to 91%, the cell concentration from 10.2 g l-1 to 23.6 g l-1 and the ethanol productivity from 8.2 g l-1 h-1 to 20 g l-1 h-1 when a 270 g l-1 glucose solution was fed to the reactor at a dilution rate of 0.16 h-1. In the membrane cell recycle culture with the solvent extraction the ethanol productivity increased to 45 g l-1 h-1 and 70% of the ethanol produced was extracted to the solvent stream. The mathematical modeling of the extractive bioconversion predicted ethanol concentration and productivity of the system reasonably well.
Publisher
ELSEVIER SCIENCE BV
Issue Date
1992-07
Language
English
Article Type
Article
Keywords

IMMOBILIZED YEAST-CELLS; SACCHAROMYCES-CEREVISIAE; FERMENTATION; MICROFILTRATION; PERVAPORATION; CONVERSION; RECOVERY; BUTANOL; DESIGN

Citation

JOURNAL OF BIOTECHNOLOGY, v.24, no.3, pp.329 - 343

ISSN
0168-1656
URI
http://hdl.handle.net/10203/66863
Appears in Collection
CBE-Journal Papers(저널논문)
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