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Valorization of by-products from commercial fish species: extraction and chemical properties of skin gelatins

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dc.contributor.authorSousa, Sérgio C.
dc.contributor.authorVázquez, José A.
dc.contributor.authorPérez-Martín, Ricardo I.
dc.contributor.authorCarvalho, Ana P.
dc.contributor.authorGomes, Ana M.
dc.date.accessioned2017-12-19T18:31:06Z
dc.date.available2017-12-19T18:31:06Z
dc.date.issued2017
dc.description.abstractFish skins constitute an important fraction of the enormous amount of wastes produced by the fish processing industry, part of which may be valorized through the extraction of gelatins. This research exploited the extraction and characterization of gelatins from the skin of three seawater fish species, namely yellowfin tuna (Thunnus albacares), blue shark (Prionace glauca), and greenland halibut (Reinhardtius hippoglossoides). Characterization included chemical composition, rheology, structure, texture, and molecular weight, whereas extraction studies intended to reduce costly steps during extraction process (reagents concentration, water consumption, and time of processing), while maintaining extraction efficiency. Chemical and physical characterization of the obtained gelatins revealed that the species from which the gelatin was extracted, as well as the heat treatment used, were key parameters in order to obtain a final product with specific properties. Therefore, the extraction conditions selected during gelatin production will drive its utilization into markets with well-defined specifications, where the necessity of unique products is being claimed. Such achievements are of utmost importance to the food industry, by paving the way to the introduction in the market of gelatins with distinct rheological and textural properties, which enables them to enlarge their range of applications.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSousa, S. C., Vazquez, J. A., Perez-Martin, R. I., Carvalho, A. P., & Gomes, A. M. P. (2017). Valorization of by-products from commercial fish species: Extraction and chemical properties of skin gelatins. Molecules, 22(9), 1545pt_PT
dc.identifier.doi10.3390/molecules22091545pt_PT
dc.identifier.eid85029656817
dc.identifier.issn1420-3049
dc.identifier.pmcPMC6151748
dc.identifier.pmid28906448
dc.identifier.urihttp://hdl.handle.net/10400.14/23770
dc.identifier.wos000411499400128
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relation0687_NOVOMAR_1_P
dc.relationiSEAS LIFE13 ENV/ES/000131
dc.relation0302_CVMAR_I_1_P
dc.relationNORTE-07-0124-FEDER-000069
dc.relationNorte-01-0145-FEDER-000011
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectExtractionpt_PT
dc.subjectFish gelatinpt_PT
dc.subjectMarine by-productspt_PT
dc.subjectMicrostructural propertiespt_PT
dc.subjectRheological propertiespt_PT
dc.subjectTextural propertiespt_PT
dc.titleValorization of by-products from commercial fish species: extraction and chemical properties of skin gelatinspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue9pt_PT
oaire.citation.titleMoleculespt_PT
oaire.citation.volume22pt_PT
person.familyNameSousa
person.familyNameVázquez Álvarez
person.familyNamePerez-Martin
person.familyNameCarvalho
person.familyNameGomes
person.givenNameSérgio
person.givenNameJosé Antonio
person.givenNameRicardo
person.givenNameAna
person.givenNameAna Maria
person.identifier155666
person.identifierK-5479-2013
person.identifier162628
person.identifier.ciencia-idF11D-362D-1EFD
person.identifier.ciencia-id1F14-B378-B20A
person.identifier.ciencia-id6F1E-301F-71BA
person.identifier.ciencia-idAA12-BFC1-B2E3
person.identifier.orcid0000-0001-6205-1266
person.identifier.orcid0000-0002-1122-4726
person.identifier.orcid0000-0002-4918-9399
person.identifier.orcid0000-0001-5967-4200
person.identifier.orcid0000-0001-7883-2446
person.identifier.ridK-5938-2014
person.identifier.ridA-2399-2013
person.identifier.ridK-5479-2013
person.identifier.ridB-9944-2013
person.identifier.scopus-author-id55649569791
person.identifier.scopus-author-id23107698900
person.identifier.scopus-author-id7003832237
person.identifier.scopus-author-id36855267200
person.identifier.scopus-author-id57190668768
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication4869c73d-b4fd-45ff-88fa-8ecde60f5ca0
relation.isAuthorOfPublication9fc63220-54db-4ff2-8711-8bec73b6b242
relation.isAuthorOfPublicationb21e16ab-ef25-46ae-b0da-3a4758778f44
relation.isAuthorOfPublication61e93e5c-d206-455d-84cb-d5cbc048ee5b
relation.isAuthorOfPublicationc18c2fb1-f3dc-4274-a646-23d456432798
relation.isAuthorOfPublication.latestForDiscovery61e93e5c-d206-455d-84cb-d5cbc048ee5b

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