BY-PRODUCTS FORMED DURING DIRECT CONVERSION OF SUGAR-BEETS TO ETHANON BY ZYMOMONAS-MOBILIS IN CONVENTIONAL SUBMERGED AND SOLID-STATE FERMENTATIONS

被引：11

作者：

AMIN, G ^{[1
]}

ALLAH, AMK ^{[1
]}

机构：

[1] UNIV CAIRO,FAC AGR,DEPT FOOD TECHNOL,GIZA,EGYPT

来源：

BIOTECHNOLOGY LETTERS | 1992年 / 14卷 / 12期

关键词：

D O I：

10.1007/BF01027026

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：

The nature and amounts of by-products formed during conversion of sugar beets to ethanol by Z.mobilis in Conventional Submerged Fermentation (CSF) and Solid-State Fermentation (SSF) were investigated. It was found that the bacterium produced fewer by-products in SSF than CSF, and that by-products profile was different. The influence of fermentation temperature on synthesis of by-products in SSF was also studied. High fermentation temperature favoured sorbitol synthesis and low fermentation temperature the synthesis of levan. The best results were obtained at 35-degrees-C. An ethanol yield of up to 95% of the theoretical value with final ethanol concentration of 142 g/L were obtained.

引用

页码：1187 / 1192

页数：6

共 21 条

[1] COMPARATIVE-STUDY OF ETHANOL-PRODUCTION BY IMMOBILIZED-CELL SYSTEMS USING ZYMOMONAS-MOBILIS OR SACCHAROMYCES-BAYANUS [J].