Physiological difference during ethanol fermentation between calcium alginate-immobilized Candida tropicalis and Saccharomyces cerevisiae

被引：37

作者：

Jamai, L

Sendide, K

Ettayebi, K

Errachidi, F

Hamdouni-Alami, O

Tahri-Jouti, MA

McDermott, T

Ettayebi, M

机构：

[1] Univ Sidi Mohamed Ben Abdallah, Biotechnol Unit, Atlas, Fes, Morocco

[2] Montana State Univ, Thermal Biol Inst, Bozeman, MT 59717 USA

来源：

FEMS MICROBIOLOGY LETTERS | 2001年 / 204卷 / 02期

关键词：

calcium alginate immobilization; ethanol production; thermotolerance; Candida tropicalis; Saccharomyces cerevisiae;

D O I：

10.1111/j.1574-6968.2001.tb10913.x

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

Calcium alginate-immobilized Candida tropicalis and Saccharomyces cerevisiae are compared for glucose fermentation. Immobilized C. tropicalis cells showed a slight morphological alteration during ethanol production at 40 degreesC, but their fermentation capacity was reduced by 25%. Under immobilization conditions, the two species demonstrated two different mathematical patterns when the relationship between growth rate, respiration rate, and ethanol tolerance was assessed. The interspecific difference in behavior of immobilized yeast cells is mainly due to their natural metabolic preference. The production Of CO2 by calcium alginate-immobilized C tropicalis, as well as the lower supply of oxygen to the cells, are the major factors that reduce ethanol production. (C) 2001 Federation of European Microbiological Societies. Published by Elsevier Science B.V. All rights reserved.

引用

页码：375 / 379

页数：5

共 22 条

[1] SELECTION OF THERMOTOLERANT YEASTS FOR SIMULTANEOUS SACCHARIFICATION AND FERMENTATION (SSF) OF CELLULOSE TO ETHANOL [J].