Rates of glucose oxidation with a column reactor utilizing a magnetic field

Abstract

Rates of glucose oxidation were measured with the use of a fluidized-bed column placed in a magnetic field and magnetite-containing beads of immobilized glucose oxidase and catalase. Its performance was predicted from the volumetric coefficient for liquid-phase mass transfer and the kinetic constants for glucose oxidation. Effusion of beads was negligible under the operating conditions employed.

MAGNETIC FIELD ASSISTED FLUIDIZATION – A UNIFIED APPROACH Part 6. Topics of Gas-Liquid-Solid Fluidized Bed Hydrodynamics

“…To some extent, compounds based on Ca-alginate (Sajc et al 1995(Sajc et al ,1996 doped with magnetite and magnetic cores covered by nonmagnetic layers such as activated carbon and zeolite (Penchev et al, 1991;Al-Qodah, 2002a) are employed. In some studies (on bubble dynamics and gas holdup) surfactants similar to those in classical hydrodynamics experiments with bubble columns (Fan, 1989) Sada et al, (1983) -field distribution c) Wu (1987, 1988)-hydrodynamic experiments. Short coils based system.…”

“…Magnetically assisted airlifts Onto tehi Fig. 3 Examples of gas-liquid distributor designs used in magnetically threephase fluidization Schematically a) Sada(1983) b) Sada(1983) c) Penchevetal. (1991) d) HuandWu (1987) -hydrodynamic experiments e) HuandWu (1987) phenol degradation f) Hristov (1998aHristov ( ,2005a …”

Characteristics of a novel low density cell-immobilized magnetic supports in liquid magnetically stabilized beds

“…Among these new contactors, fluidized beds and packed beds are being considered as promising reactors suitable for carrying out bioprocesses with immobilized biocatalysts [1,2]. Subsequently, magnetically stabilized fluidized beds (MSFBs) have been applied to conduct bioprocesses with immobilized biocatalyst on magnetic particles as a solid phase, thereby presenting further options in continuous reactor systems [3][4][5]. This technology is expected to show potential applications in various areas such as bioseparations and immobilized biocatalyst systems [6][7][8][9][10][11][12].…”

Performance of rotating packed disk reactor with immobilized glucose oxidase

“…Currently fluidized beds are used as three-phase reactors (Sada, 1983;Musgrave, 1982). However, vigorous bubbling to improve gas absorption rate requires excessive aeration energy and will damage beads with immobilzed enzymes.…”