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Multivariate analysis of Tronchuda Cabbage (Brassica oleracea L. var. costata DC) phenolics: influence of fertilizers

2008Journal article Open access
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dc.contributor.authorSousa, Carla
dc.contributor.authorPereira, David M.
dc.contributor.authorPereira, J.A.
dc.contributor.authorRodrigues, M.A.
dc.contributor.authorBento, Albino
dc.contributor.authorDopico-García, Sonia
dc.contributor.authorLopes, Graciliana
dc.contributor.authorValentão, Patrícia
dc.contributor.authorSeabra, Rosa M.
dc.contributor.authorAndrade, Paula B.
dc.date.accessioned2008-09-08T08:36:46Z
dc.date.available2008-09-08T08:36:46Z
dc.date.issued2008
dc.description.abstractA field experiment was carried out to investigate the effect of fertilization level on the phenolic composition of tronchuda cabbage (Brassica oleracea L. var. costata DC) external and internal leaves. Eight different plots were constituted: a control without fertilization, one with organic matter, and six experiments with conventional fertilizers (nitrogen, boron, and sulfur, two levels each). The phenolic compounds were analyzed by reversed-phase HPLC-DAD. External and internal leaves revealed distinct qualitative composition. In the internal leaves were found 15 phenolics (5 kaempferol and 10 cinnamic acid derivatives), whereas the external leaves presented 3-p-coumaroylquinic acid and 13 kaempferol derivatives. Principal component analysis (PCA) was applied to assess the relationships between phenolic compounds, agronomical practices, and harvesting time. Samples obtained with conventional practices were quite effectively separated from organic samples, for both types of leaves. In general, samples developed without any fertilization presented the highest phenolics amounts: external and internal leaves contained 1.4- and 4.6-fold more phenolic compounds than the ones that received conventional fertilizer, respectively, and the internal leaves presented 2.4 times more phenolics than the ones grown with organic amendment. Additionally, samples from organic production exhibited higher total phenolics content than those from conventional practices, collected at the same time. Samples harvested first were revealed to be distinct from the ones collected later. The results show that it is possible to grow tronchuda cabbage without excess fertilizers, with highest amounts of phenolics and reduced environment contamination.en
dc.identifier.citationSousa, C.; Pereira, D.M.; Pereira, J.A.; Rodrigues, M.A.; Bento, Albino; Dopico-García, S.; Lopes, Graciliana; Valentão, P.; Seabra, R.M.; Andrade, P.B. (2008). Multivariate analysis of of Tronchuda Cabbage (Brassica oleracea L. var. costata DC) phenolics: influence of fertilizers. Journal of Agricultural and Food Chemistry. ISSN 0021-8561. 56:6, p. 2231–2239en
dc.identifier.doi10.1021/jf073041o
dc.identifier.issn0021-8561
dc.identifier.urihttp://hdl.handle.net/10198/776
dc.language.isoengen
dc.peerreviewedyes
dc.publisherACSen
dc.relationPhytochemical and antioxidant characterization of Brassica oleracea var. costata (tronchuda cabbage) in in vivo and in vitro cultures
dc.relationDESENVOLVIMENTO DE MÉTODOS DE EXTRACÇÃO DE FENÓIS E ÁCIDOS ORGÂNICOS POR MSPD E SUA APLICAÇÃO NA CARACTE- RIZAÇÃO DE CASTAS PRODUTORAS DE VINHO VERDE
dc.subjectBrassica oleracea L. var. costata DCen
dc.subjectTronchuda cabbageen
dc.subjectPhenolic compoundsen
dc.subjectOrganic fertilizationen
dc.subjectNitrogenen
dc.subjectBoronen
dc.subjectSulfuren
dc.subjectPrincipal component analysisen
dc.titleMultivariate analysis of Tronchuda Cabbage (Brassica oleracea L. var. costata DC) phenolics: influence of fertilizersen
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitlePhytochemical and antioxidant characterization of Brassica oleracea var. costata (tronchuda cabbage) in in vivo and in vitro cultures
oaire.awardTitleDESENVOLVIMENTO DE MÉTODOS DE EXTRACÇÃO DE FENÓIS E ÁCIDOS ORGÂNICOS POR MSPD E SUA APLICAÇÃO NA CARACTE- RIZAÇÃO DE CASTAS PRODUTORAS DE VINHO VERDE
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POCI/POCI%2FAGR%2F57399%2F2004/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F21757%2F2005/PT
oaire.fundingStreamPOCI
person.familyNamePereira
person.familyNameRodrigues
person.familyNameBento
person.givenNameJosé Alberto
person.givenNameManuel Ângelo
person.givenNameAlbino
person.identifier.ciencia-id611F-80B2-A7C1
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person.identifier.ciencia-idD516-325A-9AD7
person.identifier.orcid0000-0002-2260-0600
person.identifier.orcid0000-0002-5367-1129
person.identifier.orcid0000-0001-5215-785X
person.identifier.ridL-6798-2014
person.identifier.ridO-1721-2016
person.identifier.ridN-9706-2016
person.identifier.scopus-author-id57204366348
person.identifier.scopus-author-id35270106800
person.identifier.scopus-author-id35247694000
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.rightsopenAccess
rcaap.typearticleen
relation.isAuthorOfPublication7932162e-a2da-4913-b00d-17babbe51857
relation.isAuthorOfPublication43621353-fa11-4559-9b24-27eba5ad3de0
relation.isAuthorOfPublication233115be-9d46-49d0-8b7d-2d64406d64a0
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