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A biorefinery from Nannochloropsis sp. microalga – Extraction of oils and pigments. Production of biohydrogen from the leftover biomass

2013Journal article Open access
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dc.contributor.authorNobre, B. P.
dc.contributor.authorVillalobos, Fidel
dc.contributor.authorBarragan, Blanca E
dc.contributor.authorOliveira, Ana Cristina
dc.contributor.authorBatista, Ana Paula
dc.contributor.authorMarques, Paula
dc.contributor.authorMendes, Rui L.
dc.contributor.authorSovová, H.
dc.contributor.authorPalavra, António F.
dc.contributor.authorGouveia, Luisa
dc.date.accessioned2013-03-05T16:56:15Z
dc.date.available2013-03-05T16:56:15Z
dc.date.issued2013
dc.description.abstractThe microalga Nannochloropsis sp. was used in this study, in a biorefinery context, as biomass feedstock for the production of fatty acids for biodiesel, biohydrogen and high added-value compounds. The microalgal biomass, which has a high lipid and pigment content (mainly carotenoids), was submitted to supercritical CO2 extraction. The temperature, pressure and solvent flow-rate were evaluated to check their effect on the extraction yield. The best operational conditions to extract 33 glipids/100 gdry biomass were found to be at 40 °C, 300 bar and a CO2 flow-rate of 0.62 g/min. The effect of adding a co-solvent (ethanol) was also studied. When supercritical CO2 doped with 20% (w/w) ethanol was used, it was possible to extract 45 glipids/100 gdry biomass of lipids and recover 70% of the pigments. Furthermore, the remaining biomass after extraction was effectively used as feedstock to produce biohydrogen through dark fermentation by Enterobacter aerogenes resulting in a hydrogen production yield of 60.6 mL/gdry biomass.por
dc.identifier.citationNobre, B.P.; Villalobos, F.; Barragán, B.E. [et.al.]. A biorefinery from Nannochloropsis sp. microalga – Extraction of oils and pigments. Production of biohydrogen from the leftover biomass. In: Bioresource Technology, 2013, Vol. 135, p. 128-136por
dc.identifier.issn0960-8524
dc.identifier.urihttp://hdl.handle.net/10400.9/1679
dc.language.isoengpor
dc.publisherElsevierpor
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.biortech.2012.11.084por
dc.subjectNannochloropsis sp.por
dc.subjectOilspor
dc.subjectCarotenoidspor
dc.subjectBiohydrogenpor
dc.subjectBiorefinerypor
dc.titleA biorefinery from Nannochloropsis sp. microalga – Extraction of oils and pigments. Production of biohydrogen from the leftover biomasspor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleBioresource Technologypor
person.familyNameNobre
person.familyNameOliveira
person.familyNameMarques
person.familyNameGouveia
person.givenNameBeatriz
person.givenNameAna Cristina
person.givenNamePaula
person.givenNameLuisa
person.identifierH-4046-2011
person.identifier.ciencia-idFE18-BFAF-9ED9
person.identifier.ciencia-id6B16-BB35-47F5
person.identifier.ciencia-id581B-924A-84DD
person.identifier.orcid0000-0002-6397-9397
person.identifier.orcid0000-0001-5641-8965
person.identifier.orcid0000-0002-0033-9333
person.identifier.orcid0000-0003-0196-6360
person.identifier.ridJ-3977-2013
person.identifier.scopus-author-id6602872178
person.identifier.scopus-author-id7004135834
rcaap.rightsopenAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublicationcd73527f-0305-4b2f-9022-e4f66def4d43
relation.isAuthorOfPublication01e58214-951d-4fe7-a058-20f1b224c559
relation.isAuthorOfPublicationd5d8b14d-fe13-41e1-a7d0-ae1816ebe45c
relation.isAuthorOfPublication63dcbe08-14df-4886-98b7-2945cbe0e062
relation.isAuthorOfPublication.latestForDiscovery63dcbe08-14df-4886-98b7-2945cbe0e062

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