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Abstract(s)
Application of Fick's first law to substrate undergoing chemical reaction catalyzed by an enzyme immobilized in a porous slab-shaped bead leads to substrate concentration profiles that are flatter when the ratio of stoichiometric coefficients of product to reactant (x) is lower. Since the actual effectiveness factor decreases when x increases (at approximately the same rate irrespective of the value taken by the Michaelis-Menten parameter), then considerable overprediction of the conversion levels obtained within a given reaction timeframe will occur if the simplistic (and more easily modelled) situation of equimolar counterdiffusion is taken for modelling purposes when x>1.
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Citation
BARRIOS, R.M. ; MALCATA, F.X. - Decreases in molecularity promote conversion when reactions are catalyzed by enzymes immobilized in slab-shaped beads. Bioprocess and Biosystems Engineering. ISSN 1615-7605. Vol. 20, n.º 2 (1999), p. 101-104
Publisher
Springer Verlag