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Effects of raw and hydrolysed Nannochloropsis gaditana biomass included at low level in finishing diets for gilthead seabream (Sparus aurata) on fillet quality and shelf life

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dc.contributor.authorSáez, Mª Isabel
dc.contributor.authorGalafat, Alba
dc.contributor.authorSuárez, Mª Dolores
dc.contributor.authorChaves Pozo, Elena
dc.contributor.authorArizcun, Marta
dc.contributor.authorAyala Florenciano, María Dolores
dc.contributor.authorAlarcón, Francisco Javier
dc.contributor.authorMartínez, Tomás F.
dc.contributor.departmentAnatomía y Anatomía Patológica Comparada
dc.coverage.spatialInternacionales
dc.date.accessioned2025-01-15T10:19:24Z
dc.date.available2025-01-15T10:19:24Z
dc.date.issued2023-06
dc.description© The Author(s) 2023. This manuscript version is made available under the CC-BY 4.0 license http://creativecommons.org/licenses/by/4.0/ This document is the Published Manuscript version of a Published Work that appeared in final form in Journal of Applied Phycology. To access the final edited and published work see https://doi.org/10.1007/s10811-023-02957-6
dc.description.abstractNumerous studies evaluating the effects of the incorporation of microalgae in feeds have reported favourable impacts on different physiological aspects of aquacultured fish. Although productivity is the major goal in terms of profitability in fish farming, qualitative aspects are gaining the attention of producers, given the relevance of quality attributes related to organoleptic parameters, proximal composition, and shelf life on the commercial value of fish. Indeed, microalgae are acknowledged for their richness in substances with potential positive effects on all those quality attributes. In this context, this study assesses the effects of finishing diets enriched with the microalga Nannochloropsis gaditana, either crude or enzymatically hydrolysed, on several quality parameters of gilthead seabream (Sparus aurata) fillets. Two inclusion levels (2.5 and 5%) of raw and enzymatically hydrolysed microalgal biomass were incorporated into diets, plus a microalgae-free control diet, and a 42-day feeding trial was carried out on fish of commercial size (approx. 500 g body weight). The influence of the experimental diets on fish biometry, fillet quality parameters, and shelf life was evaluated. The results indicate, overall, that microalgae-enriched diets yielded favourable, dose-dependent effects on several objective quality parameters of fillets, namely, improved fatty acid profile, reduced microbial counts, enhanced lipid oxidative status, and improved textural and skin colour attributes. Although the enzymatic pre-treatment of the microalgal biomass was expected to impact positively its functional effects on all quality parameters, however, no general trend was observedes
dc.formatapplication/pdfes
dc.format.extent19es
dc.identifier.doihttps://doi.org/10.1007/s10811-023-02957-6
dc.identifier.eisbnJournal of Applied Phycology, 2023, Vol. 35, pp. 1163-1181es
dc.identifier.issnPrint: 0921-8971
dc.identifier.issnElectronic: 1573-5176
dc.identifier.urihttp://hdl.handle.net/10201/148455
dc.languageenges
dc.publisherSpringer
dc.relationUniversidad de Almería/CBUA. This research was funded by Spanish MCIU-FEDER (grant# RTI2018-096625-B-C31 and grant # RTI2018-096625-B-C33),AquaTech4Feed (grant # PCI2020-112204) granted by AEI within the ERA-NET BioBlue COFUND. A. Galafat received a Margarita Salas postdoc grant (RR_A_2022_03, Ministerio de Universidades, Spain. Proyectos de Generación de Conocimiento», en el marco del Programa Estatal para Impulsar la Investigación Científico-Técnica y su Transferencia, del Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023. BOE de 13 de noviembre de 2021es
dc.relation.publisherversionhttps://link.springer.com/article/10.1007/s10811-023-02957-6es
dc.rightsinfo:eu-repo/semantics/openAccesses
dc.rightsAtribución 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectFillet qualityes
dc.subjectMicroalgae hydrolysis
dc.subjectFinishing diets
dc.subjectFish shelf life
dc.subjectFunctional additives
dc.subject.otherCDU::6 - Ciencias aplicadases
dc.titleEffects of raw and hydrolysed Nannochloropsis gaditana biomass included at low level in finishing diets for gilthead seabream (Sparus aurata) on fillet quality and shelf lifees
dc.typeinfo:eu-repo/semantics/articlees
dspace.entity.typePublicationes
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