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Analytical effectiveness factor calculations concerning product‐inhibited fermentations associated with biofilm growth and maintenance
Author(s) -
Vanede C. J.,
Bollen A. M.,
Beenackers A. A. C. M.
Publication year - 1993
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450710611
Subject(s) - zymomonas mobilis , biofilm , biochemical engineering , chemistry , diffusion , production (economics) , substrate (aquarium) , product inhibition , kinetics , product (mathematics) , process engineering , fermentation , ethanol fuel , biochemistry , thermodynamics , mathematics , engineering , biology , bacteria , economics , ecology , physics , genetics , non competitive inhibition , geometry , macroeconomics , quantum mechanics , enzyme
An analytical reaction engineering model, recently presented by van Ede et al. (1992), which describes formation of inhibiting products associated with the growth of immobilized biofilms, is extended to describe simultaneous production associated with biofilm maintenance. The model accounts for both the metabolic rate controlling behaviour of an inhibitory product in the biofilm, and the effect of diffusion limitation in the transport of this product or a substrate, on the biofilm thickness. Simple criteria are presented to check the applicability of the model in the case of true Monod kinetics. As a potentially industrially important example, ethanol production by Zymomonas mobilis is treated.