ALCOHOLIC FERMENTATION OF CELLULOSE HYDROLYSATE BY ZYMOMONAS-MOBILIS

被引：10

作者：

PARK, SC ^{[1
]}

KADEMI, A ^{[1
]}

BARATTI, JC ^{[1
]}

机构：

[1] UNIV PROVENCE,FAC SCI LUMINY,DEPT CHIM,F-13288 MARSEILLE 9,FRANCE

来源：

BIOTECHNOLOGY LETTERS | 1993年 / 15卷 / 11期

关键词：

D O I：

10.1007/BF00131212

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：

Growth and ethanol production by three strains of the bacterium Zymomonas mobilis were tested, at 40-degrees-C, in a medium containing cellulose hydrolysate (hexose fraction) as carbon source. The thermotolerant mutant C107 exhibited the best growth compared to wild type ZM4 and to the osmotolerant mutant SBE15. When cultivated in media supplemented with various nutrients, growth was only observed in presence of yeast extract (10 g/l) which acted both as a vitamin supplier and pH stabilizer. Using calcium pantothenate instead of yeast extract and sodium acetate to control pH resulted in growth inhibition by the high medium osmolality. Batch fermentation with pH control (KOH addition) showed good growth and ethanol production with the mineral medium.

引用

页码：1179 / 1184

页数：6

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