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Effect of light quality supplied by light emitting diodes (LEDs) on growth and biochemical profiles of Nannochloropsis oculata and Tetraselmis chuii

2016-07Journal article Restricted
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dc.contributor.authorSchulze, Peter S.C.
dc.contributor.authorPereira, Hugo
dc.contributor.authorSchueler, Lisa
dc.contributor.authorGuerra, Rui Manuel Farinha das Neves
dc.contributor.authorBarreira, Luísa
dc.contributor.authorPerales, Jose A.
dc.contributor.authorVarela, João
dc.contributor.authorSantos, Tamara
dc.date.accessioned2017-04-07T15:56:37Z
dc.date.available2017-04-07T15:56:37Z
dc.date.issued2016-07
dc.description.abstractBiochemical components obtained by microalgal biomass can be induced by specific wavelengths and processed to high value food/feed supplements or pharma- and nutraceuticals. Two biotechnologically relevant microalgae, Nannochloropsis oculata and Tetraselmis chuii, were exposed to non-tailored LEDs light sources emitting either mono- or multichromatic light with low red but significant blue (<450 nm) photon content, or tailored light sources with high blue or high red photon emissions: fluorescent light (FL), di- or multichromatic LED mixes. Growth of N. oculata and T. chuii under tailored light resulted in a approximate to 24% increase of the average biomass productivity as compared to cultures lit by non-tailored light sources. FL induced the highest C:N ratios in both algae (N. oculata: 7.91 +/- 0.09 and T. chuii: 11.29 +/- 0.03), highest total lipid (48.37 +/- 1.07%) in N. oculata and carbohydrate (55.31 +/- 1.02%) in T. chuii biomass. Among non-tailored light sources, monochromatic LEDs with emission peaks 465, 630 and 660 nm induced a approximate to 29% increase of carbohydrates and a approximate to 20% decrease of protein levels as compared to LEDs peaking at 405 nm and cool-and warm white LEDs. In conclusion, as FL have low photon conversion efficiencies (PCE), particularly within the red wavelength range, LEDs emitting at the 390-450 and 630-690 nm wavebands should be combined for optimal carbon fixation, nitrogen and phosphate uptake. (C) 2016 Elsevier B.V. All rights reserved.
dc.identifier.doi10.1016/j.algal.2016.03.034
dc.identifier.issn2211-9264
dc.identifier.urihttp://hdl.handle.net/10400.1/9476
dc.language.isoeng
dc.peerreviewedyes
dc.relationCentre of Marine Sciences
dc.relationBiotechnological applications of a promising marine chlorophyte Tetraselmis sp. CTP4: a biorefinery approach
dc.relation.isbasedonWOS:000375610000044
dc.titleEffect of light quality supplied by light emitting diodes (LEDs) on growth and biochemical profiles of Nannochloropsis oculata and Tetraselmis chuii
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCentre of Marine Sciences
oaire.awardTitleBiotechnological applications of a promising marine chlorophyte Tetraselmis sp. CTP4: a biorefinery approach
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FMulti%2F04326%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/OE/SFRH%2FBD%2F105541%2F2014/PT
oaire.citation.endPage398
oaire.citation.startPage387
oaire.citation.titleAlgal Research
oaire.citation.volume16
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamOE
person.familyNameSchulze
person.familyNamePereira
person.familyNameSchüler
person.familyNameGuerra
person.familyNameBarreira
person.familyNameVarela
person.familyNameSantos
person.givenNamePeter S.C.
person.givenNameHugo
person.givenNameLisa
person.givenNameRui
person.givenNameLuísa
person.givenNameJoão
person.givenNameTamara
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person.identifier.orcid0000-0002-4077-855X
person.identifier.orcid0000-0003-3101-693X
person.identifier.orcid0000-0001-9008-4436
person.identifier.ridE-9360-2015
person.identifier.ridM-4223-2013
person.identifier.scopus-author-id56244247100
person.identifier.scopus-author-id54080259900
person.identifier.scopus-author-id55741416000
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccess
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