Optimization of the simultaneous saccharification and fermentation process using thermotolerant yeasts
- Instituto de Energias Renovables, Madrid (Spain)
Different treatments to improve the thermotolerance of fermenting yeasts for simultaneous ethanol saccharification and fermentation process of cellulosic materials have been examined. Yeasts of the genera Saccharomyces and Kluyveromyces were tested for growth and fermentation at progressively higher temperatures in the range of 42-47[degrees]C. The best results were obtained with K. marxianus LG, which was then submitted to different treatments in order to achieve thermotolerant clones. A total of 35 new clones were obtained that dramatically improved the SSF of 10% Solka-floc substrate at 45[degrees]C when compared to the original strain, some with ethanol concentrations as high as 33 g/L.
- OSTI ID:
- 6775797
- Journal Information:
- Applied Biochemistry and Biotechnology; (United States), Journal Name: Applied Biochemistry and Biotechnology; (United States) Vol. 39-40; ISSN 0273-2289; ISSN ABIBDL
- Country of Publication:
- United States
- Language:
- English
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59 BASIC BIOLOGICAL SCIENCES
ALCOHOLS
BIOCONVERSION
CARBOHYDRATES
CELLULOSE
CHEMICAL REACTIONS
DECOMPOSITION
ETHANOL
FERMENTATION
HYDROLYSIS
HYDROXY COMPOUNDS
LYSIS
ORGANIC COMPOUNDS
POLYSACCHARIDES
PRODUCTION
SACCHARIDES
SACCHARIFICATION
SOLVOLYSIS