Separation, hydrolysis and fermentation of pyrolytic sugars to produceethanol and lipids
This paper describes a new scheme to convert anhydrosugars found in pyrolysis oils into ethanol and lipids. Pyrolytic sugars were separated from phenols by solvent extraction and were hydrolyzed into glucose using sulfuric acid as a catalyst. Toxicological studies showed that phenols and acids were...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
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Elsevier BV
2010
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| Online Access: | http://hdl.handle.net/20.500.11937/15200 |
| _version_ | 1848748829226041344 |
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| author | Lian, J. Chen, S. Zhou, S. Wang, Z. O'Fallon, J. Li, Chun-Zhu Garcia-Perez, M. |
| author_facet | Lian, J. Chen, S. Zhou, S. Wang, Z. O'Fallon, J. Li, Chun-Zhu Garcia-Perez, M. |
| author_sort | Lian, J. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This paper describes a new scheme to convert anhydrosugars found in pyrolysis oils into ethanol and lipids. Pyrolytic sugars were separated from phenols by solvent extraction and were hydrolyzed into glucose using sulfuric acid as a catalyst. Toxicological studies showed that phenols and acids were the main species inhibiting growth of the yeast Saccharomyces cerevisiae. The sulfuric acids, and carboxylic acids from the bio-oils, were neutralized with Ba(OH)2. The phase rich in sugar was further detoxified with activated carbon. The resulting aqueous phase rich in glucose was fermented with three different yeasts: S. cerevisiae to produce ethanol, and Cryptococcus curvatus and Rhodotorula glutinis to produce lipids. Yields as high as 0.473g ethanol/g glucose and 0.167g lipids/g sugar (0.266g ethanol equivalent/g sugar), were obtained. These results confirm that pyrolytic sugar fermentation to produce ethanol is more efficient than for lipid production. |
| first_indexed | 2025-11-14T07:11:15Z |
| format | Journal Article |
| id | curtin-20.500.11937-15200 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:11:15Z |
| publishDate | 2010 |
| publisher | Elsevier BV |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-152002017-09-13T15:56:21Z Separation, hydrolysis and fermentation of pyrolytic sugars to produceethanol and lipids Lian, J. Chen, S. Zhou, S. Wang, Z. O'Fallon, J. Li, Chun-Zhu Garcia-Perez, M. ethanol lipids separation fermentation hydrolysis pyrolytic produce sugars This paper describes a new scheme to convert anhydrosugars found in pyrolysis oils into ethanol and lipids. Pyrolytic sugars were separated from phenols by solvent extraction and were hydrolyzed into glucose using sulfuric acid as a catalyst. Toxicological studies showed that phenols and acids were the main species inhibiting growth of the yeast Saccharomyces cerevisiae. The sulfuric acids, and carboxylic acids from the bio-oils, were neutralized with Ba(OH)2. The phase rich in sugar was further detoxified with activated carbon. The resulting aqueous phase rich in glucose was fermented with three different yeasts: S. cerevisiae to produce ethanol, and Cryptococcus curvatus and Rhodotorula glutinis to produce lipids. Yields as high as 0.473g ethanol/g glucose and 0.167g lipids/g sugar (0.266g ethanol equivalent/g sugar), were obtained. These results confirm that pyrolytic sugar fermentation to produce ethanol is more efficient than for lipid production. 2010 Journal Article http://hdl.handle.net/20.500.11937/15200 10.1016/j.biortech.2010.07.071 Elsevier BV restricted |
| spellingShingle | ethanol lipids separation fermentation hydrolysis pyrolytic produce sugars Lian, J. Chen, S. Zhou, S. Wang, Z. O'Fallon, J. Li, Chun-Zhu Garcia-Perez, M. Separation, hydrolysis and fermentation of pyrolytic sugars to produceethanol and lipids |
| title | Separation, hydrolysis and fermentation of pyrolytic sugars to produceethanol and lipids |
| title_full | Separation, hydrolysis and fermentation of pyrolytic sugars to produceethanol and lipids |
| title_fullStr | Separation, hydrolysis and fermentation of pyrolytic sugars to produceethanol and lipids |
| title_full_unstemmed | Separation, hydrolysis and fermentation of pyrolytic sugars to produceethanol and lipids |
| title_short | Separation, hydrolysis and fermentation of pyrolytic sugars to produceethanol and lipids |
| title_sort | separation, hydrolysis and fermentation of pyrolytic sugars to produceethanol and lipids |
| topic | ethanol lipids separation fermentation hydrolysis pyrolytic produce sugars |
| url | http://hdl.handle.net/20.500.11937/15200 |