Ethanol production from glucose and xylose by separated and co-culture processes using high cell density systems
| Autor: | J. M. Navarro, J. M. Laplace, J.P. Delgenes, René Moletta |
|---|---|
| Rok vydání: | 1993 |
| Předmět: |
0106 biological sciences
0303 health sciences Ethanol Chromatography biology Bioengineering Xylose biology.organism_classification 01 natural sciences Applied Microbiology and Biotechnology Biochemistry Zymomonas mobilis Saccharomyces Yeast 03 medical and health sciences chemistry.chemical_compound chemistry 010608 biotechnology Fermentation Ethanol fuel Pichia stipitis 030304 developmental biology |
| Zdroj: | Process Biochemistry. 28:519-525 |
| ISSN: | 1359-5113 |
| DOI: | 10.1016/0032-9592(93)85013-6 |
| Popis: | Media containing xylose and/or glucose were tested utilizing Zymomonas mobilis or Saccharomyces diastaticus and Pichia stipitis. The best fermentation results were obtained in separated glucose (180 g/litre) and xylose (80 g/litre) fermentations utilizing Zymomonas mobilis and Pichia stipitis strains, respectively. In these conditions, the maximum ethanol concentrations achieved were 86·2 g/litre and 29 g/litre, respectively. The complete conversion of a glucose and xylose mixture (50 g/litre) was obtained using a respiratory deficient mutant of Saccharomyces diastaticus co-cultivated with Pichia stipitis in continuous culture. Using the co-culture process, the maximum ethanol concentration was 21·5 g/litre (Yp/s=0·45 g/g) and the maximum volumetric ethanol productivity was 4·3 g/(litre × h). |
| Databáze: | OpenAIRE |
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