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Fatty acid composition from olive oils of portuguese centenarian trees is highly dependent on olive cultivar and crop year

2021Artigo científico Acesso aberto
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dc.contributor.authorRodrigues, Nuno
dc.contributor.authorCasal, Susana
dc.contributor.authorPinho, Teresa
dc.contributor.authorCruz, Rebeca
dc.contributor.authorPeres, António M.
dc.contributor.authorBaptista, Paula
dc.contributor.authorPereira, J.A.
dc.date.accessioned2018-02-19T10:00:00Z
dc.date.accessioned2021-11-22T11:07:46Z
dc.date.available2018-01-19T10:00:00Z
dc.date.available2021-11-22T11:07:46Z
dc.date.issued2021
dc.description.abstractThe high proportions of monounsaturated fatty acids (MUFA) represent one of the most important technological and nutritional features of olive oils. The present study details the fatty acid (FA) composition of autochthonous cultivars (Lentisca, Madural, Redondal, Rebolã, Verdeal, and Verdeal Transmontana) produced from centenarian trees during five crop years (2013–2017). Olive cultivar highly influenced the FA composition, namely, oleic acid (70.3% for Madural to 80.7% for Redondal) and palmitic acid (10.4% for Lentisca to 13.5% for Verdeal). Similarly, crop year significantly influenced the individual FA contents. Principal component analysis of FA data enabled the unsupervised classification by cultivar and, within each cultivar, by crop year. Furthermore, the levels of nine individual FAs, together with the polyunsaturated fatty acid contents, selected using the simulated annealing algorithm, allowed for their correct classification, on the basis of linear discriminant analysis, according to the olive cultivar, with an overall sensitivity of 92%, for leave-one-out cross-validation procedure. Globally, the cultivar effect superimposed that of crop year, showing that some cultivars, such as Redondal and Verdeal Transmontana, have consistently high and homogeneous proportions of MUFA, indicating that they are worth exploring in terms of future selection of cultivars that are able to produce olive oils with increased nutritional value and that are less prone to oxidation.en_EN
dc.description.sponsorshipThe authors are grateful to the Foundation for Science and Technology (FCT, Portugal) for financial support by national funds FCT/MCTES to CIMO (UIDB/00690/2020), and to REQUIMTE (NORTE-01-0145-FEDER-LAQV (UIDB/50006/2020). This work was also supported by PRODER project OliveOld—“Identificação e caraterização de oliveiras centenárias para obtenção de produtos diferenciados” no. 53988. Nuno Rodrigues thanks national funding by FCT—Foundation for Science and Technology, P.I., through the institutional scientific employment program-contract.
dc.description.versioninfo:eu-repo/semantics/publishedVersionen_EN
dc.identifier.citationRodrigues, Nuno; Casal, Susana; Pinho, Teresa; Cruz, Rebeca; Peres, António M.; Baptista, Paula; Pereira, José Alberto (2021). Fatty acid composition from olive oils of portuguese centenarian trees is highly dependent on olive cultivar and crop year. Foods. ISSN 2304-8158. 10:3, p. 1-13en_EN
dc.identifier.doi10.3390/foods10030496en_EN
dc.identifier.urihttp://hdl.handle.net/10198/24229
dc.language.isoeng
dc.peerreviewedyesen_EN
dc.relationMountain Research Center
dc.relationAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
dc.subjectChemical characterizationen_EN
dc.subjectChemometricsen_EN
dc.subjectCrop yearen_EN
dc.subjectMonounsaturated fatty acidsen_EN
dc.subjectOlive heritageen_EN
dc.titleFatty acid composition from olive oils of portuguese centenarian trees is highly dependent on olive cultivar and crop yearen_EN
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMountain Research Center
oaire.awardTitleAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50006%2F2020/PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.familyNameRodrigues
person.familyNamePeres
person.familyNameBaptista
person.familyNamePereira
person.givenNameNuno
person.givenNameAntónio M.
person.givenNamePaula
person.givenNameJosé Alberto
person.identifier107333
person.identifier.ciencia-idF41D-B424-5F78
person.identifier.ciencia-idCF16-5443-F420
person.identifier.ciencia-id7D11-FE1E-CD0F
person.identifier.ciencia-id611F-80B2-A7C1
person.identifier.orcid0000-0002-9305-0976
person.identifier.orcid0000-0001-6595-9165
person.identifier.orcid0000-0001-6331-3731
person.identifier.orcid0000-0002-2260-0600
person.identifier.ridI-8470-2012
person.identifier.ridL-6798-2014
person.identifier.scopus-author-id55258560600
person.identifier.scopus-author-id7102331969
person.identifier.scopus-author-id14051688000
person.identifier.scopus-author-id57204366348
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccessen_EN
rcaap.typearticleen_EN
relation.isAuthorOfPublication00739d63-995d-4b1f-97d0-03d24c7cf0fd
relation.isAuthorOfPublication7d93be47-8dc4-4413-9304-5b978773d3bb
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