| Autor: |
Allan Froehlich, Sean Covalla, Romain Fromanger, Joonas Hämäläinen, Tarja Kaartinen, Beth Mastel, M. Minna Laine |
| Rok vydání: |
2022 |
| DOI: |
10.1101/2022.08.12.503730 |
| Popis: |
Both hexose- and pentose-fermenting yeasts are commercially available. The aim of this study was to test several yeast strains for their ability to ferment lignocellulosic feedstock and to evaluate their usability in a bioethanol production process based on the Cellunolix® concept. The Cellunolix® bioethanol demonstration plant of St1 uses sawdust to produce second-generation lignocellulosic ethanol. The study was performed in collaboration with yeast providers using two types of pretreated and filtered lignocellulosic ethanol hydrolysate originating from pine and willow. Ten pentose- and three hexose-fermenting yeast strains were tested. They all performed well under industrial conditions but differed in the rate of detoxification and profile for utilization of different sugars. A satisfactory 82–97% fermentation yield of a multi-sugar hydrolysate containing glucose, mannose, galactose, arabinose and xylose was achieved within 48 h. The results indicate significant potential for the usability of pentose-fermenting strains with real industrial hydrolysates and settings. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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