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| Content Provider | Springer Nature Link |
|---|---|
| Author | Atiyeh, H. Duvnjak, Z. |
| Copyright Year | 2001 |
| Abstract | The production of ethanol and enriched fructose syrups from a synthetic medium with various sucrose concentrations using the mutant Saccharomyces cerevisiae ATCC 36858 was investigated. In batch tests, fructose yields were above 90% of theoretical values for the sucrose concentrations between 35 g/l and 257 g/l. The specific growth rates and biomass yields were from 0.218 to 0.128 h–1 and from 0.160 to 0.075 g biomass/g of glucose and fructose consumed, respectively. Ethanol yields were in the range of 72 to 85% of theoretical value when sucrose concentrations were above 81 g/l. The volumetric ethanol productivity was 2.23 g ethanol/(l h) in a medium containing 216 g/l sucrose. Fructo-oligosaccharides and glycerol were also produced in the process. A maximum fructo-oligosaccharides concentration (up to 9 g/l) was attained in the 257 g/l sucrose medium in the first 7 h of the fermentation. These sugars started to be consumed when the concentrations of sucrose in the media were less than 30% of its initial values. The fructo-oligosaccharides mixture was composed of 6-kestose (61.5%), neokestose (29.7%) and 1-kestose (8.8%). The concentration of glycerol produced in the process was less than 9 g/l. These results will be useful in the production of enriched fructose syrups and ethanol using sucrose-based raw materials. |
| Starting Page | 407 |
| Ending Page | 411 |
| Page Count | 5 |
| File Format | |
| ISSN | 01757598 |
| Journal | Applied Microbiology and Biotechnology |
| Volume Number | 57 |
| Issue Number | 3 |
| e-ISSN | 14320614 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2001-08-17 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | Subscribed |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine Applied Microbiology and Biotechnology Biotechnology |
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