Immobilized tubular fermentor

Journal Article · Thu Sep 01 00:00:00 EDT 1983 · Biotechnol. Bioeng.; (United States)

DOI:https://doi.org/10.1002/bit.260250910· OSTI ID:5403289

Gencer, M A; Mutharasan, R

In this article, a mathematical model describing the kinetics of ethanol fermentation in a whole cell immobilized tubular fermentor is proposed. Experimental results show reasonable agreement with the proposed model. A procedure for treating the fermentation data for determining the ethanol inhibition constants k1 and k2 is described. The ethanol productivity of the immobilized cell fermentor is compared with those of traditional fermentors. Experimental studies indicate that with Saccharomyces cerevisiae (NRRL Y132) culture, ethanol productivity in the range 21.2-83.7 g ethanol/L/h at ethanol concentration of 76-60 g/L can be achieved. This is comparable to or higher than those reported in the literature for yeast. The product yield factor of 0.5 g ethanol/g glucose was obtained. The immobilized cell fermentor does not show washout at dilution rates of 7/h and shows good stability over a 650-h operating period.

• Research Organization: Dept. of Chemical Engineering, Drexel Univ., Philadelphia, PA 9104, USA
• OSTI ID: 5403289
• Journal Information: Biotechnol. Bioeng.; (United States), Vol. 25:9
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
ETHANOL
BIOSYNTHESIS
BIOREACTORS
FERMENTATION
IMMOBILIZED CELLS
KINETICS
MATHEMATICAL MODELS
SACCHAROMYCES CEREVISIAE
YIELDS
ALCOHOLS
BIOCONVERSION
FUNGI
HYDROXY COMPOUNDS
MICROORGANISMS
ORGANIC COMPOUNDS
PLANTS
SACCHAROMYCES
SYNTHESIS
YEASTS
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