Levan-ethanol biosynthesis using Zymomonas mobilis cells immobilized by attachment and entrapment

摘要

Fermentation of sucrose by Zymomonas mobilis cells attached to stainless steel wire spheres (WS) and to Al_2O_3 granules was compared with sucrose fermentation by cells entrapped in Ca-alginate. Similar amounts of cell biomass were applied at the beginning of the immobilized fermentation systems. The immobilization of Z. Mobilis cells to the carrier surface was chekced by scanning electron microscopy (SEM).