Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.biortech.2010.11.102
DC FieldValue
dc.titleEnhanced algae growth in both phototrophic and mixotrophic culture under blue light
dc.contributor.authorDas, P.
dc.contributor.authorLei, W.
dc.contributor.authorAziz, S.S.
dc.contributor.authorObbard, J.P.
dc.date.accessioned2014-10-09T07:36:26Z
dc.date.available2014-10-09T07:36:26Z
dc.date.issued2011-02
dc.identifier.citationDas, P., Lei, W., Aziz, S.S., Obbard, J.P. (2011-02). Enhanced algae growth in both phototrophic and mixotrophic culture under blue light. Bioresource Technology 102 (4) : 3883-3887. ScholarBank@NUS Repository. https://doi.org/10.1016/j.biortech.2010.11.102
dc.identifier.issn09608524
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/90957
dc.description.abstractBiomass productivity and fatty acid methyl esters (FAME) derived from intracellular lipid of a Nannochloropsis sp. isolated from Singapore's coastal waters were studied under different light wavelengths and intensities. Nannochloropsis sp., was grown in both phototrophic and mixotrophic (glycerol as the carbon source) culture conditions in three primary monochromatic light wavelengths, i.e., red, green and blue LEDs, and also in white LED. The maximum specific growth rate (μ) for LEDs was blue>white>green>red. Nannochloropsis sp. achieved a μ of 0.64 and 0.66d-1 in phototrophic and mixotrophic cultures under blue lighting, respectively. The intracellular fatty acid composition of Nannochloropsis sp. varied between cultures exposed to different wavelengths, although the absolute fatty acid content did differ significantly. Maximum FAME yield from Nannochloropsis sp. was 20.45% and 15.11% of dry biomass weight equivalent under photo- and mixotrophic culture conditions respectively for cultures exposed to green LED (550nm). However, maximum volumetric FAME yield was achieved for phototrophic and mixotrophic cultures (i.e., 55.13 and 111.96mg/l, respectively) upon cell exposure to blue LED (470nm) due to highest biomass productivity. It was calculated that incremental exposure of light intensity over the cell growth cycle saves almost 20% of the energy input relative to continuous illumination for a given light intensity. © 2010 Elsevier Ltd.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.biortech.2010.11.102
dc.sourceScopus
dc.subjectBiodiesel
dc.subjectIncremental lighting
dc.subjectMonochromatic light
dc.subjectNannochloropsis
dc.subjectPhotobioreactor
dc.typeArticle
dc.contributor.departmentCIVIL & ENVIRONMENTAL ENGINEERING
dc.description.doi10.1016/j.biortech.2010.11.102
dc.description.sourcetitleBioresource Technology
dc.description.volume102
dc.description.issue4
dc.description.page3883-3887
dc.description.codenBIRTE
dc.identifier.isiut000287277800032
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