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Phaeodactylum tricornutum in finishing diets for gilthead seabream: effects on skin pigmentation, sensory properties and nutritional value

2017-08Journal article Restricted access
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dc.contributor.authorRibeiro, Ana Ramalho
dc.contributor.authorGonçalves, Amparo
dc.contributor.authorBarbeiro, Mónica
dc.contributor.authorBandarra, Narcisa
dc.contributor.authorNunes, Maria Leonor
dc.contributor.authorCarvalho, Maria Luisa
dc.contributor.authorSilva, Joana
dc.contributor.authorNavalho, João
dc.contributor.authorDinis, Maria Teresa
dc.contributor.authorSilva, Tome
dc.contributor.authorDias, Jorge
dc.date.accessioned2019-11-20T15:07:28Z
dc.date.available2019-11-20T15:07:28Z
dc.date.issued2017-08
dc.description.abstractMicroalgal biomasses are known to play a major role in fish pigmentation, which is particularly important in farmed fish, since colour and external appearance are the first cue for customers when choosing seafood. A study was undertaken to assess the potential of microalgae biomass from the diatom Phaeodactylum tricornutum as a functional ingredient for gilthead seabream (Sparus aurata) feeds. Three experimental diets were designed: a control diet (CTRL), this same diet supplemented with 2.5% of P. tricornutum wild strain (diet MA20); and a third diet with 2.5% of P. tricornutum biomass (diet MA37) cultivated under different temperature and light regimes that resulted in higher levels of fucoxanthin. Microalgae diets led to a reduction (P < 0.05 in MA37) of whole-body fat and lower lipid retention (P < 0.05 in MA20 and MA37). Microalgae did not impact odour, flavour, whiteness, and fatness perception in cooked fillets. Overall, colour analysis showed that P. tricornutum biomass led to significant differences compared to control in specific areas: the MA37 diet induced a significantly (P < 0.05) lighter and more vivid yellow colouration of seabream operculum (Delta E* approximate to 5) perceptible to the human eye; ventral skin lightness was also affected by the dietary treatments (P = 0.040), being higher for microalgae-fed groups, though this difference was not perceptually strong (Delta E* approximate to 1.7). Phaeodactylum tricornutum biomass can be used as a functional ingredient, improving external pigmentation and thus contributing to meet consumer expectations in relation to farmed gilthead seabream.
dc.description.sponsorshipEU FP7 [266401]
dc.description.sponsorshipFCT/MCTES (Portugal) through grant [SFRH/BD/73452/2010]
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1007/s10811-017-1125-3
dc.identifier.issn0921-8971
dc.identifier.issn1573-5176
dc.identifier.urihttp://hdl.handle.net/10400.1/13057
dc.language.isoeng
dc.peerreviewedyes
dc.publisherSpringer
dc.relationGenetic Improvement of Algae for Value Added Products
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectBream sparus-aurata
dc.subjectFlounder paralichthys-olivaceus
dc.subjectBass dicentrarchus-labrax
dc.subjectFatty-acid-composition
dc.subjectPorgy pagrus-pagrus
dc.subjectSea bream
dc.subjectMarine microalgae
dc.subjectRainbow-trout
dc.subjectOrganoleptic Quality
dc.subjectAntioxidant activity
dc.titlePhaeodactylum tricornutum in finishing diets for gilthead seabream: effects on skin pigmentation, sensory properties and nutritional value
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleGenetic Improvement of Algae for Value Added Products
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F73452%2F2010/PT
oaire.awardURIinfo:eu-repo/grantAgreement/EC/FP7/266401/EU
oaire.citation.endPage1956
oaire.citation.issue4
oaire.citation.startPage1945
oaire.citation.titleJournal of Applied Phycology
oaire.citation.volume29
oaire.fundingStreamSFRH
oaire.fundingStreamFP7
person.familyNameDinis
person.givenNameMaria Teresa
person.identifier.ciencia-id5414-4ACF-BF90
person.identifier.orcid0000-0001-7813-1324
person.identifier.scopus-author-id7004150905
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameEuropean Commission
rcaap.rightsrestrictedAccess
rcaap.typearticle
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relation.isAuthorOfPublication.latestForDiscovery309dec19-8aa9-4bea-8665-42dd4b3a9894
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