Cellulose ethanol production from waste newsprint by simultaneous saccharification and fermentation using Saccharomyces cerevisiae KNU5377
| Autor: | Insu Park, Ingnyol Jin, Kyunghee Kang, Ho-Yong Sohn, Il-Sup Kim, Han-Su Jang, In-Koo Rhee |
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| Rok vydání: | 2010 |
| Předmět: |
biology
business.industry Bioengineering Cellulase Pulp and paper industry Applied Microbiology and Biotechnology Biochemistry Yeast Biotechnology Hydrolysis chemistry.chemical_compound chemistry Cellulosic ethanol visual_art Newsprint biology.protein visual_art.visual_art_medium Fermentation Ethanol fuel Cellulose business |
| Zdroj: | Process Biochemistry. 45:487-492 |
| ISSN: | 1359-5113 |
| DOI: | 10.1016/j.procbio.2009.11.006 |
| Popis: | A thermotolerant ethanol-fermenting yeast, Saccharomyces cerevisiae KNU5377, isolated from a sludge of a local industrial complex stream in Korea, was evaluated for its capability for lignocellulosic ethanol production from waste newsprint in high temperature. In this fermentation, most of dry-defibrated waste newspaper was first saccharified at 50 °C for 108 h using a commercial cellulase and, then with the last addition of dry-defibrated newsprints to the pre-saccharified broth, simultaneous saccharification and fermentation (SSF) of 1.0 L of reaction mixture was carried out at 40 °C, slowly being dropped from 50 °C, for further 72 h in a 5 L fermentor by inoculating the overnight culture of KNU5377. The maximum production of 8.4% (v/v) ethanol was obtained when 250 g (w/v)/L of dry-defibrated waste newspaper was used for ethanol production by SSF. These results suggest that S. cerevisiae KNU5377 is very useful for cellulose ethanol production by the SSF system. |
| Databáze: | OpenAIRE |
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