Performance of cell immobilized packed bed bioreactor for continuous fermentation of alcohol

Gel Entrapment and Micro-Encapsulation: Methods, Applications and Engineering Principles

“…4: Simulation of biomass concentration profile in a Ca-alginate bead with entrapped S. cerevisiae (Willaert and Baron, 1994). Monod + substrate and D f0 a,(\-a 2 C x ) 2 A, B product inhibition de Gooijer et al, 1991;Wijffelset al, 1991;Wijffels, 1994de Gooijer et al, 1992Wijffels, 1994;Sekietal., 1990Furusaki and Seki, 1992 a A, Comparison to experimental data; B, Internal mass transfer resistance only; C, Internal and external mass transfer resistance; D, Includes overall reactor performance model a ι constant (dimensionless) D, diffusion coefficient in water a 2 constant X biomass Beer and Sweerts, 1989;de Beeretal., 1990Hooijmans et al, 1990aAdlercreutz, 1986Hiemstraetal., 1983Brink and Tramper, 1986bRamakrishna et al, 1991Willaert, 1993Willaert, 1993 and Baron, 1993Hooijmans et al, 1990b, c Chen and Huang, 1988Luong, 1985Melicketal., 1987Sakakietal., 1988Webb et al, 1990Zero order C,F,E,H Krouwel and Kossen, 1980 . (c) Steady-State Modelling Provided cell mass does not vary rapidly, or is fairly uniform, the concentration profiles in a gel matrix with entrapped cells can be simulated using a steady-state model at any point in time.…”

Deacidification of grape musts by Schizosaccharomyces entrapped in alginate beads: a continuous-fluidized-bed process

“…We first assayed fermentations by SHZ immo bilized in alginate beds in a bubble column reactor [17]. Although these experiments gave good results for both deacidification rate and alginate bead re sistance, an industrial process for winemaking with out the use of continuous gas flow would be better.…”