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Selenastrum Capricornutum: Harvesting and Oil Extraction, for Biodiesel Production
European Journal of Sustainable Development
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| Title |
Selenastrum Capricornutum: Harvesting and Oil Extraction, for Biodiesel Production
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| Creator |
Pérez, Leticia
Cancela, Ángeles Maceiras, Rocío Salgueiro, J.L. Sánchez, Ángel |
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| Description |
An alternative for biodiesel production is the use of lipids from microalgae. Although all steps to obtain this biofuel are important, harvesting and extraction are the most important. Advances in these areas are necessary in order to obtain third-generation fuels. The purpose of the present study is to compare different methods of lipids extraction and harvesting for freshwater Selenastrum Capricornutum microalgae. The method used for harvesting was flocculation with inorganic agent. Copper (II) Sulphate (CuSO4) was used as flocculant, resulting in the best percentage of recovery (76%) for a dose of 2 g/L. Previously oil extraction, the collected samples were homogenized and their moisture content was analysed obtaining values of 55-96%. Two extraction methods were used: Soxhlet and ultrasound. The use of ultrasound favours cell disruption and increases the extraction yield. In extraction methods, polar, non-polar solvents, and mixes of solvents were used. N-hexane and acetone were used as solvents for Soxhlet extraction, and ethanol, acetone, methanol, chloroform, and a mixture of chloroform and methanol in 1:2 and 2:1 ratios, for extraction ultrasound assisted method. The use of the methanol-assisted ultrasound is the most efficient method for lipids extraction for Selenastrum Capricornutum biomass. Keywords: microalgae, extraction, ultrasound, Soxhlet, solvent, harvesting
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| Publisher |
European Center of Sustainable Development
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| Contributor |
—
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| Date |
2015-06-02
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| Type |
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion — |
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| Format |
application/pdf
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| Identifier |
http://www.ecsdev.org/ojs/index.php/ejsd/article/view/241
10.14207/ejsd.2015.v4n2p97 |
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| Source |
European Journal of Sustainable Development; Vol 4, No 2; 97-102
2239-6101 2239-5938 |
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| Language |
eng
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| Relation |
http://www.ecsdev.org/ojs/index.php/ejsd/article/view/241/232
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| Rights |
This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License.Authors of articles published in the European Journal of Sustainable Development retain copyright on their articles. Authors are therefore free to disseminate and re-publish their articles, subject to any requirements of third-party copyright owners and subject to the original publication being fully cited. The ability to copy, download, forward or otherwise distribute any materials is always subject to any copyright notices displayed. Copyright notices must be displayed prominently and may not be obliterated, deleted or hidden, totally or partially.
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