Oil extraction from microalgae for biodiesel production
This study examines the performance of supercritical carbon dioxide (SCCO2) extraction and hexane extraction of lipids from marine Chlorococcum sp. for lab-scale biodiesel production. Even though the strain of Chlorococcum sp. used in this study had a low maximum lipid yield (7.1 wt% to dry biomass)...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Published: |
Elsevier BV
2011
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| Online Access: | http://hdl.handle.net/20.500.11937/41439 |
| _version_ | 1848756146477727744 |
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| author | Halim, R. Gladman, B. Danquah, Michael Webley, P. |
| author_facet | Halim, R. Gladman, B. Danquah, Michael Webley, P. |
| author_sort | Halim, R. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This study examines the performance of supercritical carbon dioxide (SCCO2) extraction and hexane extraction of lipids from marine Chlorococcum sp. for lab-scale biodiesel production. Even though the strain of Chlorococcum sp. used in this study had a low maximum lipid yield (7.1 wt% to dry biomass), the extracted lipid displayed a suitable fatty acid profile for biodiesel [C18:1 (~63 wt%), C16:0 (~19 wt%), C18:2 (~4 wt%), C16:1 (~4 wt%), and C18:0 (~3 wt%)]. For SCCO2 extraction, decreasing temperature and increasing pressure resulted in increased lipid yields. The mass transfer coefficient (k) for lipid extraction under supercritical conditions was found to increase with fluid dielectric constant as well as fluid density. For hexane extraction, continuous operation with a Soxhlet apparatus and inclusion of isopropanol as a co-solvent enhanced lipid yields. Hexane extraction from either dried microalgal powder or wet microalgal paste obtained comparable lipid yields. |
| first_indexed | 2025-11-14T09:07:34Z |
| format | Journal Article |
| id | curtin-20.500.11937-41439 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:07:34Z |
| publishDate | 2011 |
| publisher | Elsevier BV |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-414392017-09-13T14:10:55Z Oil extraction from microalgae for biodiesel production Halim, R. Gladman, B. Danquah, Michael Webley, P. This study examines the performance of supercritical carbon dioxide (SCCO2) extraction and hexane extraction of lipids from marine Chlorococcum sp. for lab-scale biodiesel production. Even though the strain of Chlorococcum sp. used in this study had a low maximum lipid yield (7.1 wt% to dry biomass), the extracted lipid displayed a suitable fatty acid profile for biodiesel [C18:1 (~63 wt%), C16:0 (~19 wt%), C18:2 (~4 wt%), C16:1 (~4 wt%), and C18:0 (~3 wt%)]. For SCCO2 extraction, decreasing temperature and increasing pressure resulted in increased lipid yields. The mass transfer coefficient (k) for lipid extraction under supercritical conditions was found to increase with fluid dielectric constant as well as fluid density. For hexane extraction, continuous operation with a Soxhlet apparatus and inclusion of isopropanol as a co-solvent enhanced lipid yields. Hexane extraction from either dried microalgal powder or wet microalgal paste obtained comparable lipid yields. 2011 Journal Article http://hdl.handle.net/20.500.11937/41439 10.1016/j.biortech.2010.06.136 Elsevier BV restricted |
| spellingShingle | Halim, R. Gladman, B. Danquah, Michael Webley, P. Oil extraction from microalgae for biodiesel production |
| title | Oil extraction from microalgae for biodiesel production |
| title_full | Oil extraction from microalgae for biodiesel production |
| title_fullStr | Oil extraction from microalgae for biodiesel production |
| title_full_unstemmed | Oil extraction from microalgae for biodiesel production |
| title_short | Oil extraction from microalgae for biodiesel production |
| title_sort | oil extraction from microalgae for biodiesel production |
| url | http://hdl.handle.net/20.500.11937/41439 |