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Lxvxntx L. DioPady a and Taya Puzanov a
aDxpartPxnt of ZAxPiZal-xnginxxring and Applixd ZAxPiPtry, UnivxrPity of Toronto, 200 Zollxgx Pt., Toronto, Ontario, Zanada P5P 3x5
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Abstract:
In the continuous membrane fermentation of Lactobacillus rhamnosus at biomass concentrations above 100 g/L the viscosity of the system increased sharply resulting in decreased permeate flux. At cell densities higher than 108 g/L a slight deviation from Newtonian behaviour was observed. Steady state was achieved and main kinetic characteristics remained constant for around 100 hours when the biomass concentration was maintained at a constant level by continuous bleeding.
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Keywords: biomass bleeding; membrane fermentation; Lactobacillus rhamnosus; viscosity; rheology.
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*Corresponding author; e-mail: diosady@chem-eng.utoronto.ca
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©
2005
CSME , ISSN 0257-9731
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