Ethanol production from fructose in continuous culture by free and flocculent cells of Zymomonas mobilis |
| |
Authors: | I Toran-Diaz V K Jain J C Baratti |
| |
Institution: | (1) Université de Provence, CNRS, Laboratoire de Chimie Bactérienne, BP 71, 13277, 9 Marseille, France |
| |
Abstract: | Summary
Zymomonas mobilis strain ZM4 was used for ethanol production from fructose (100 g/l) in continuous culture with a mineral (containing Ca pantothenate) or a rich (containing yeast extract) mediium. With both media high conversion yields were observed but the ethanol productivity was limited by the low biomass content of the fermentor. A new flocculent strain of Z.mobilis (ZM4F) was cultivated in a CSTR with an internal settler and showed a maximal productivity of 93 g/l.h (fructose conversion of 80%). When the fructose conversion was 96% an ethanol productivity of 85.6 g/l.h with an ethanol yield of 0.49 g/g (96% of theoretical) was observed. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|