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Supervised chemical pattern recognition in almond (Prunus dulcis) Portuguese PDO cultivars: a PCA and LDA based triennial study

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dc.contributor.authorBarreira, João C.M.
dc.contributor.authorCasal, Susana
dc.contributor.authorFerreira, Isabel C.F.R.
dc.contributor.authorPeres, António M.
dc.contributor.authorPereira, J.A.
dc.contributor.authorOliveira, Beatriz
dc.date.accessioned2013-01-07T10:08:45Z
dc.date.available2013-01-07T10:08:45Z
dc.date.issued2012
dc.description.abstractAlmonds harvested in three years in Trás-os-Montes (Portugal) were characterized to find differences among Protected Designation of Origin (PDO) Amêndoa Douro and commercial non-PDO cultivars. Nutritional parameters, fiber (neutral and acid detergent fibers, acid detergent lignin and cellulose), fatty acids, triacylglycerols (TAG) and tocopherols were evaluated. Fat was the major component, followed by carbohydrates, protein and moisture. Fatty acids were mostly detected as monounsaturated and polyunsaturated forms, with relevance of oleic and linoleic acids. Accordingly, 1,2,3-trioleoylglycerol and 1,2-dioleoyl-3-linoleoylglycerol were the major TAG. α-Tocopherol was the leading tocopherol. To verify statistical differences among PDO and non-PDO cultivars independently of the harvesting year, data were analyzed through an analysis of variance, a principal components analysis and a linear discriminant analysis (LDA). These differences identified classification parameters, providing an important tool for authenticity purposes. The best results were achieved with TAG analysis coupled with LDA, that proved its effectiveness to discriminate almond cultivars.por
dc.description.sponsorshipWe are grateful to FCT, POPH-QREN, and FSE for financial support to J.C.M.B. SFRH/BPD/72802/2010).
dc.identifier.citationBarreira, João C.M.; Casal, Susana; Ferreira, Isabel C.F.R.; Peres, António M.; Pereira, José A.: Oliveira, M. Beatriz P.P. (2012). Supervised chemical pattern recognition in almond (Prunus dulcis) Portuguese PDO cultivars: a PCA and LDA based triennial study. Journal of Agricultural and Food Chemistry. ISSN 0021-8561. 60:38, p. 9697-9704por
dc.identifier.doi10.1021/jf301402t
dc.identifier.issn0021-8561
dc.identifier.urihttp://hdl.handle.net/10198/7831
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherAmerican Chemical Societypor
dc.relationBIOACTIVE PROPERTIES & CYTOPROTECTIVE POTENTIAL OF NATURAL EXTRACTS/INDIVIDUAL COMPOUNDS: APPLICATION OF SINGLE CELL GEL ELECTROPHORESIS AND OTHER BIOCHEMICAL, CHEMICAL AND ELECTROCHEMICAL ASSAYS
dc.subjectPDO almondpor
dc.subjectNutritional/chemical compositionpor
dc.subjectAuthenticitypor
dc.subjectPCApor
dc.subjectLDApor
dc.titleSupervised chemical pattern recognition in almond (Prunus dulcis) Portuguese PDO cultivars: a PCA and LDA based triennial studypor
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleBIOACTIVE PROPERTIES & CYTOPROTECTIVE POTENTIAL OF NATURAL EXTRACTS/INDIVIDUAL COMPOUNDS: APPLICATION OF SINGLE CELL GEL ELECTROPHORESIS AND OTHER BIOCHEMICAL, CHEMICAL AND ELECTROCHEMICAL ASSAYS
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F72802%2F2010/PT
oaire.citation.endPage9704por
oaire.citation.startPage9697por
oaire.citation.titleJournal of Agricultural and Food Chemistrypor
oaire.citation.volume60por
person.familyNameBarreira
person.familyNameFerreira
person.familyNamePeres
person.familyNamePereira
person.givenNameJoão C.M.
person.givenNameIsabel C.F.R.
person.givenNameAntónio M.
person.givenNameJosé Alberto
person.identifier144781
person.identifier107333
person.identifier.ciencia-id9418-CF95-9919
person.identifier.ciencia-idCF16-5443-F420
person.identifier.ciencia-id611F-80B2-A7C1
person.identifier.orcid0000-0003-1233-0990
person.identifier.orcid0000-0003-4910-4882
person.identifier.orcid0000-0001-6595-9165
person.identifier.orcid0000-0002-2260-0600
person.identifier.ridD-8269-2013
person.identifier.ridE-8500-2013
person.identifier.ridI-8470-2012
person.identifier.ridL-6798-2014
person.identifier.scopus-author-id54895546900
person.identifier.scopus-author-id36868826600
person.identifier.scopus-author-id7102331969
person.identifier.scopus-author-id57204366348
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication4629b12c-39b0-4da8-8b8d-6efba5cf2d81
relation.isAuthorOfPublicationbd0d1537-2e03-41fb-b27a-140af9c35db8
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