Use of immobilized cells of Zymomonas mobilis in a novel fluidized bioreactor to produce ethanol

Conference · Fri Jan 01 04:00:00 EST 1982 · Biotechnol. Bioeng. Symp.; (United States)

OSTI ID:6010023

Margaritis, A; Wallace, J B

A novel 2-L fluidized bioreactor was designed and built and its performance characteristics were compared with those of an ordinary stirred-tank bioreactor. Calcium alginate beads containing immobilized cells of Zymomonas mobilis were used in both types of bioreactors to produce ethanol from glucose. The Ca-alginate beads were exposed to low shear rates inside the fluidized bioreactor and as a result the cell leakage from the beads was found to be about 100 times less than the cell leakage obtained in the mechanically stirred bioreactor. For the operating conditions studied, the fluidized bioreactor system gave at least 64% higher maximum rate of ethanol production and the power consumption per unit volume was found to be about four times less than that obtained with the mechanically stirred bioreactor. 9 figures, 1 table.

• Research Organization: Univ. of Western Ontario, London
• OSTI ID: 6010023
• Report Number(s): CONF-820580-
• Conference Information: Journal Name: Biotechnol. Bioeng. Symp.; (United States) Journal Volume: 12
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
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550700 -- Microbiology
59 BASIC BIOLOGICAL SCIENCES
ALCOHOLS
ALDEHYDES
BACTERIA
BIOCONVERSION
BIOREACTORS
BIOSYNTHESIS
CARBOHYDRATES
COMPARATIVE EVALUATIONS
ETHANOL
FLUIDIZED BED
GLUCOSE
HEXOSES
HYDROXY COMPOUNDS
IMMOBILIZED CELLS
LEAKS
MICROORGANISMS
MONOSACCHARIDES
ORGANIC COMPOUNDS
SACCHARIDES
SYNTHESIS
ZYMOMONAS MOBILIS