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Operation regimes: A comparison based on Nannochloropsis oceanica biomass and lipid productivity

2021-03-11Journal article Open access
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dc.contributor.authorGuerra, Inês
dc.contributor.authorPereira, Hugo
dc.contributor.authorCosta, Margarida
dc.contributor.authorSilva, Joana T.
dc.contributor.authorSantos, Tamara
dc.contributor.authorVarela, João
dc.contributor.authorMateus, Marília
dc.contributor.authorSilva, Joana
dc.date.accessioned2021-04-20T10:35:25Z
dc.date.available2021-04-20T10:35:25Z
dc.date.issued2021-03-11
dc.date.updated2021-03-26T14:06:38Z
dc.description.abstractMicroalgae are currently considered to be a promising feedstock for biodiesel production. However, significant research efforts are crucial to improve the current biomass and lipid productivities under real outdoor production conditions. In this context, batch, continuous and semi-continuous operation regimes were compared during the Spring/Summer seasons in 2.6 m(3) tubular photobioreactors to select the most suitable one for the production of the oleaginous microalga Nannochloropsis oceanica. Results obtained revealed that N. oceanica grown using the semi-continuous and continuous operation regimes enabled a 1.5-fold increase in biomass volumetric productivity compared to that cultivated in batch. The lipid productivity was 1.7-fold higher under semi-continuous cultivation than that under a batch operation regime. On the other hand, the semi-continuous and continuous operation regimes spent nearly the double amount of water compared to that of the batch regime. Interestingly, the biochemical profile of produced biomass using the different operation regimes was not affected regarding the contents of proteins, lipids and fatty acids. Overall, these results show that the semi-continuous operation regime is more suitable for the outdoor production of N. oceanica, significantly improving the biomass and lipid productivities at large-scale, which is a crucial factor for biodiesel production.pt_PT
dc.description.sponsorshipPOCI-01-0247-FEDER-035234, LISBOA-01-0247-FEDER-035234, ALG-01-0247-FEDER-035234pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationEnergies 14 (6): 1542 (2021)pt_PT
dc.identifier.doi10.3390/en14061542pt_PT
dc.identifier.eissn1996-1073
dc.identifier.urihttp://hdl.handle.net/10400.1/15420
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectTubular photobioreactorpt_PT
dc.subjectPilot-scalept_PT
dc.subjectOperation regimespt_PT
dc.subjectOutdoor cultivationpt_PT
dc.subjectNannochloropsis oceanicapt_PT
dc.titleOperation regimes: A comparison based on Nannochloropsis oceanica biomass and lipid productivitypt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue6pt_PT
oaire.citation.startPage1542pt_PT
oaire.citation.titleEnergiespt_PT
oaire.citation.volume14pt_PT
person.familyNamePereira
person.familyNameSantos
person.familyNameVarela
person.givenNameHugo
person.givenNameTamara
person.givenNameJoão
person.identifier282781
person.identifier.ciencia-id331E-84FD-2F34
person.identifier.orcid0000-0002-1369-2099
person.identifier.orcid0000-0001-9008-4436
person.identifier.orcid0000-0003-3101-693X
person.identifier.ridE-9360-2015
person.identifier.ridM-4223-2013
person.identifier.scopus-author-id54080259900
person.identifier.scopus-author-id55741416000
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationebcb2180-5235-4502-b562-cd1e7786e6f9
relation.isAuthorOfPublication6011d40b-5657-4f76-8bb5-37f359562a11
relation.isAuthorOfPublicationd339a9e7-bc32-49c4-ba48-a17343d40092
relation.isAuthorOfPublication.latestForDiscovery6011d40b-5657-4f76-8bb5-37f359562a11

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