ETHANOL PRODUCTION FROM PAPER SLUDGE USING KLUYVEROMYCES MARXIANUS
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| Format: | Artículo científico |
| Language: | en |
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Universidad Nacional de Colombia
2011
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| author | LINA MARÍA MADRID |
| author_facet | LINA MARÍA MADRID |
| contents | ETHANOL PRODUCTION FROM PAPER SLUDGE USING KLUYVEROMYCES MARXIANUS LINA MARÍA MADRID JUAN CARLOS QUINTERO DÍAZ Ingeniería ethanol hydrolysis Paper sludge fermentation Kluyveromyces marxianus Recycled paper sludge is a promising raw material for ethanol production. In this study, we first evaluated the effects of ethanol concentration, solids load, and cellulose crystallinity on the enzymatic hydrolysis of cellulose to produce reducing sugars. We then evaluated the production of ethanol by either saccharification and simultaneous fermentation (SSF) or separated hydrolysis and fermentation (SHF) using the yeast Kluyveromyces marxianus ATCC 36907. We found that cellulose hydrolysis decreased as ethanol concentrations increased; at 40 g/L ethanol, the reducing sugar production was decreased by 79 %. Hydrolysis also decreased as solids load increased; at 9 % of solids, the cellulose conversion was 76 % of the stoichiometric production. The ethanol yield and cellulose conversion rate were higher with SSF as opposed to SHF processes at 72 h of treatment. 2011 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49621159021 en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.170 Vol.78 |
| format | Artículo científico |
| id | redalyc_49621159021 |
| institution | Redalyc |
| language | en |
| publishDate | 2011 |
| publisher | Universidad Nacional de Colombia |
| spellingShingle | ETHANOL PRODUCTION FROM PAPER SLUDGE USING KLUYVEROMYCES MARXIANUS LINA MARÍA MADRID Ingeniería ethanol hydrolysis Paper sludge fermentation Kluyveromyces marxianus ETHANOL PRODUCTION FROM PAPER SLUDGE USING KLUYVEROMYCES MARXIANUS LINA MARÍA MADRID JUAN CARLOS QUINTERO DÍAZ Ingeniería ethanol hydrolysis Paper sludge fermentation Kluyveromyces marxianus Recycled paper sludge is a promising raw material for ethanol production. In this study, we first evaluated the effects of ethanol concentration, solids load, and cellulose crystallinity on the enzymatic hydrolysis of cellulose to produce reducing sugars. We then evaluated the production of ethanol by either saccharification and simultaneous fermentation (SSF) or separated hydrolysis and fermentation (SHF) using the yeast Kluyveromyces marxianus ATCC 36907. We found that cellulose hydrolysis decreased as ethanol concentrations increased; at 40 g/L ethanol, the reducing sugar production was decreased by 79 %. Hydrolysis also decreased as solids load increased; at 9 % of solids, the cellulose conversion was 76 % of the stoichiometric production. The ethanol yield and cellulose conversion rate were higher with SSF as opposed to SHF processes at 72 h of treatment. 2011 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49621159021 en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.170 Vol.78 |
| title | ETHANOL PRODUCTION FROM PAPER SLUDGE USING KLUYVEROMYCES MARXIANUS |
| topic | Ingeniería ethanol hydrolysis Paper sludge fermentation Kluyveromyces marxianus |
| url | https://www.redalyc.org/articulo.oa?id=49621159021 |