EXTRACTIVE FERMENTATION BY ZYMOMONAS-MOBILIS AND THE CONTROL OF OSCILLATORY BEHAVIOR

被引:41
作者
BRUCE, LJ [1 ]
AXFORD, DB [1 ]
CISZEK, B [1 ]
DAUGULIS, AJ [1 ]
机构
[1] QUEENS UNIV, DEPT CHEM ENGN, KINGSTON K7L 3N6, ONTARIO, CANADA
关键词
D O I
10.1007/BF01041487
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
Extractive fermentation is shown to greatly improve the performance of Zymomonas mobilis in continuous culture during the conversion of concentrated substrates to ethanol, and it is also used to eliminate the oscillatory behavior often exhibited by Z. mobilis in conventional fermentations. An ethanol productivity of 15.6 g/Lh is achieved with the near-conversion of a 295 g/L glucose feed at a medium dilution rate of 0.11 h-1 and solvent dilution rate of 1.5 h-1. This is more than triple the productivity obtained during conventional fermentation of a 135 g/L glucose feed at the same medium dilution rate.
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页码:291 / 296
页数:6
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