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Chemical characterization of chestnut cultivars from three consecutive years: chemometrics and contribution for authentication

2012Journal article Open access
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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.accessioned2012-08-14T11:04:45Z
dc.date.available2012-08-14T11:04:45Z
dc.date.issued2012
dc.description.abstractFour Castanea sativa Miller cultivars (Aveleira, Boaventura, Judia and Longal) belonging to the Protected Designation of Origin ‘‘Castanha da Terra Fria’’, from the Northeast of Portugal, were selected in 2006, 2007 and 2008. Their nutritional, fatty acids, triacylglycerols and tocopherols profiles were evaluated. Water was the major component, followed by carbohydrates, protein and fat, with energetic values lower than 190 kcal/100 g of fresh fruit. Oleic, linoleic and palmitic were the major fatty acids, 1-oleoyl-2-linoleoyl- 3-linoleoyl-sn-glycerol, 1-linoleoyl-2-linoleoyl-3-palmitoyl-sn-glycerol, 1-oleoyl-2-linoleoyl-3- oleoyl-sn-glycerol and 1-linoleoyl-2-oleoyl-3-palmitoyl-sn-glycerol were the prevalent triacylglycerols and c-tocopherol was the most abundant tocopherol. In each parameter, differences between cultivars, harvest year and the possible cultivar year interaction were screened through a two-way analysis of variance. Differences among cultivars have been attenuated by the variability among years, leading, in general, to a significant interaction effect, which resulted in a relative homogeneity regarding chemical parameters, showing that nutritional and chemical composition was influenced by seasonal variability. A stepwise linear discriminant model, based on 10 (a-tocopherol, c-tocotrienol, LLL, OLLn, d-tocopherol, c-tocopherol, d-tocotrienol, PLLn, protein and OOO) of the 38 initial evaluated variables was also established. The model allowed the complete discrimination of cultivars with overall sensibilities and specificities of 100%, for both original grouped data and leave-one-out cross-validation procedures. Furthermore, similar results were also obtained using only tocopherols data, showing their usefulness as a discriminant factor for chestnut cultivars.por
dc.identifier.citationBarreira, João C.M.; Casal, Susana; Ferreira, Isabel C.F.R.; Peres, António; Pereira, José Alberto; Oliveira, M. Beatriz P.P. (2012). Chemical characterization of chestnut cultivars from three consecutive years: chemometrics and contribution for authentication. Food and Chemical Toxicology. ISSN 0278-6915. 50:7, p. 2311-2317por
dc.identifier.doi10.1016/j.fct.2012.04.008
dc.identifier.issn0278-6915
dc.identifier.urihttp://hdl.handle.net/10198/7342
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherElsevierpor
dc.relationCARACTERIZAÇÃO BIOLÓGICA, QUÍMICA E NUTRICIONAL DE AMÊNDOA AMYGDALUS COMMUNIS L., CASTANHA CASTANEA SATIVA MILL. E FIGO FICUS CARICA L.
dc.subjectCastanea sativa Mill.por
dc.subjectNutritional/chemical compositionpor
dc.subjectSeasonal variabilitypor
dc.subjectLinear discriminant analysispor
dc.titleChemical characterization of chestnut cultivars from three consecutive years: chemometrics and contribution for authenticationpor
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCARACTERIZAÇÃO BIOLÓGICA, QUÍMICA E NUTRICIONAL DE AMÊNDOA AMYGDALUS COMMUNIS L., CASTANHA CASTANEA SATIVA MILL. E FIGO FICUS CARICA L.
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/FARH/SFRH%2FBD%2F29060%2F2006/PT
oaire.citation.endPage2317por
oaire.citation.startPage2311por
oaire.citation.titleFood and Chemical Toxicologypor
oaire.citation.volume50por
oaire.fundingStreamFARH
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
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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
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