Alcoholic fermentation of cellulose hydrolysate by Zymomonas mobilis

Autor:	Soon Chul Park, J. Baratti, Ali Kademi
Rok vydání:	1993
Předmět:	Ethanol biology Bioengineering General Medicine Ethanol fermentation biology.organism_classification Applied Microbiology and Biotechnology Zymomonas mobilis Hydrolysate chemistry.chemical_compound chemistry Biochemistry Yeast extract Ethanol fuel Fermentation Food science Cellulose Biotechnology
Zdroj:	Biotechnology Letters. 15:1179-1184
ISSN:	1573-6776 0141-5492
DOI:	10.1007/bf00131212
Popis:	Growth and ethanol production by three strains of the bacterium Zymomonas mobilis were tested, at 40°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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e78115e0bb6392617facbf1242e9b90e https://doi.org/10.1007/bf00131212 Zobrazit plný text záznamu Full text from SpringerLink