Lipid productivity, settling potential and fatty acid profile of 11 microalgal species grown under nitrogen replete and limited conditions

Simple item page
dc.contributor.authorGriffiths, Melinda J
dc.contributor.authorvan Hille, Robert P
dc.contributor.authorHarrison, Susan T L
dc.date.accessioned2016-08-22T13:28:08Z
dc.date.available2016-08-22T13:28:08Z
dc.date.issued2012
dc.date.updated2016-08-19T13:42:09Z
dc.description.abstractMicroalgae are a promising alternative source of oil for biodiesel production. Identification of a species with desirable characteristics is a key component towards achieving economic feasibility for the process. This has been compromised by a lack of data allowing effective interspecies comparison. Eleven species of microalgae, selected on the basis of available literature data, were tested for lipid productivity, gravity sedimentation and the suitability of their fatty acid profiles for biodiesel production. The response to nitrogen limitation was species-specific. Lipid yields and productivity were higher at 150 mg L−1 nitrate than at 1,500 mg L−1 for all species tested except Spirulina platensis. The Chlorophyta, particularly Chlorella vulgaris and Scenedesmus, had the highest growth rates and showed the greatest increase in lipid content in response to nitrogen limitation. Cylindrotheca fusiformis, S. platensis, Scenedesmus and Tetraselmis suecica had the fastest settling rates and highest biomass recoveries after 24 h of gravity sedimentation. For most species, the fuel would need to be blended or culture conditions to be optimised to achieve the correct lipid profile in order for microalgal fuel to meet the European standards for biodiesel production (EN 14214). The most promising species overall were the freshwater algae Scenedesmus and C. vulgaris and the marine algae C. fusiformis and Nannochloropsis.en_ZA
dc.identifierhttp://dx.doi.org/10.1007/s10811-011-9723-y
dc.identifier.apacitationGriffiths, M. J., van Hille, R. P., & Harrison, S. T. L. (2012). Lipid productivity, settling potential and fatty acid profile of 11 microalgal species grown under nitrogen replete and limited conditions. <i>Journal of Applied Phycology</i>, http://hdl.handle.net/11427/21446en_ZA
dc.identifier.chicagocitationGriffiths, Melinda J, Robert P van Hille, and Susan T L Harrison "Lipid productivity, settling potential and fatty acid profile of 11 microalgal species grown under nitrogen replete and limited conditions." <i>Journal of Applied Phycology</i> (2012) http://hdl.handle.net/11427/21446en_ZA
dc.identifier.citationGriffiths, M. J., van Hille, R. P., & Harrison, S. T. (2012). Lipid productivity, settling potential and fatty acid profile of 11 microalgal species grown under nitrogen replete and limited conditions. Journal of Applied Phycology, 24(5), 989-1001.en_ZA
dc.identifier.issn0921-8971en_ZA
dc.identifier.ris TY - Journal Article AU - Griffiths, Melinda J AU - van Hille, Robert P AU - Harrison, Susan T L AB - Microalgae are a promising alternative source of oil for biodiesel production. Identification of a species with desirable characteristics is a key component towards achieving economic feasibility for the process. This has been compromised by a lack of data allowing effective interspecies comparison. Eleven species of microalgae, selected on the basis of available literature data, were tested for lipid productivity, gravity sedimentation and the suitability of their fatty acid profiles for biodiesel production. The response to nitrogen limitation was species-specific. Lipid yields and productivity were higher at 150 mg L−1 nitrate than at 1,500 mg L−1 for all species tested except Spirulina platensis. The Chlorophyta, particularly Chlorella vulgaris and Scenedesmus, had the highest growth rates and showed the greatest increase in lipid content in response to nitrogen limitation. Cylindrotheca fusiformis, S. platensis, Scenedesmus and Tetraselmis suecica had the fastest settling rates and highest biomass recoveries after 24 h of gravity sedimentation. For most species, the fuel would need to be blended or culture conditions to be optimised to achieve the correct lipid profile in order for microalgal fuel to meet the European standards for biodiesel production (EN 14214). The most promising species overall were the freshwater algae Scenedesmus and C. vulgaris and the marine algae C. fusiformis and Nannochloropsis. DA - 2012 DB - OpenUCT DP - University of Cape Town J1 - Journal of Applied Phycology LK - https://open.uct.ac.za PB - University of Cape Town PY - 2012 SM - 0921-8971 T1 - Lipid productivity, settling potential and fatty acid profile of 11 microalgal species grown under nitrogen replete and limited conditions TI - Lipid productivity, settling potential and fatty acid profile of 11 microalgal species grown under nitrogen replete and limited conditions UR - http://hdl.handle.net/11427/21446 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/21446
dc.identifier.vancouvercitationGriffiths MJ, van Hille RP, Harrison STL. Lipid productivity, settling potential and fatty acid profile of 11 microalgal species grown under nitrogen replete and limited conditions. Journal of Applied Phycology. 2012; http://hdl.handle.net/11427/21446.en_ZA
dc.languageengen_ZA
dc.publisherSpringeren_ZA
dc.publisher.institutionUniversity of Cape Town
dc.sourceJournal of Applied Phycologyen_ZA
dc.source.urihttp://link.springer.com/journal/10811
dc.subject.otherBiodiesel production
dc.subject.otherGravity sedimentation
dc.subject.otherLipid profile
dc.subject.otherNitrogen stress
dc.subject.otherOil yield
dc.titleLipid productivity, settling potential and fatty acid profile of 11 microalgal species grown under nitrogen replete and limited conditionsen_ZA
dc.typeJournal Articleen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceArticleen_ZA
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Griffiths_Lipid_productivity_settling_2012.pdf
Size:
604.48 KB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.72 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Journal Articles