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Effects of Pectin Concentration and Crossflow Velocity on Permeability in the Microfiltration of Dilute Pectin Solutions by Macroporous Titania Membranes Containing Immobilized Pectinase
Author(s) -
Szaniawski Andrzej R.,
Spencer H. Garth
Publication year - 1996
Publication title -
biotechnology progress
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.572
H-Index - 129
eISSN - 1520-6033
pISSN - 8756-7938
DOI - 10.1021/bp9500829
Subject(s) - pectin , microfiltration , pectinase , membrane , chromatography , chemistry , permeability (electromagnetism) , chemical engineering , membrane permeability , materials science , biochemistry , enzyme , engineering
The effects of crossflow velocity and concentration of pectin on the retentive microfiltration by a titania microfiltration membrane with pectinase physically immobilized on it by a dynamic formation method were investigated to examine the potential of these reactive membranes in applications involving solutions containing pectin. The permeability of the titania membrane with approximately 5 g/m 2 immobilized pectinase was significantly larger than the permeability of a control membrane without immobilized pectinase in pectin concentration experiments from 0.4 to 2.6% at crossflow velocities in the range 0.8−2.6 m/s. The permeability increased with crossflow velocity and decreased with pectin concentration.