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Influence of two fertilization regimes on the amounts of organic acids and phenolic compounds of tronchuda cabbage (Brassica oleracea L. Var. costata DC)

2005Journal article Restricted access
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dc.contributor.authorSousa, Carla
dc.contributor.authorValentão, Patrícia
dc.contributor.authorRangel, Joana
dc.contributor.authorLopes, Graciliana
dc.contributor.authorPereira, J.A.
dc.contributor.authorFerreres, Frederico
dc.contributor.authorSeabra, Rosa M.
dc.contributor.authorAndrade, Paula B.
dc.date.accessioned2008-09-03T12:51:34Z
dc.date.available2008-09-03T12:51:34Z
dc.date.issued2005
dc.description.abstractA phytochemical study was undertaken on tronchuda cabbage ( Brassica oleracea L. var. costata DC) cultivated under conventional and organic practices and collected at different times. Six organic acids (aconitic, citric, ascorbic, malic, shikimic, and fumaric acids) were identified and quantified by HPLC-UV. Qualitative and quantitative differences were noted between internal and external leaves. Analysis of the phenolics of the internal leaves was achieved by HPLC-DAD, and the phenolic profile obtained was revealed to be distinct from that of the external leaves. By this means were identified and quantified 11 compounds: 3- p-coumaroylquinic acid, kaempferol 3-O-sophoroside-7-O-glucoside, kaempferol 3- O-(caffeoyl)sophoroside-7- O-glucoside, kaempferol 3- O-(sinapoyl)sophoroside-7- Oglucoside, kaempferol 3- O-(feruloyl)sophoroside-7- O-glucoside, kaempferol 3- O-sophoroside, two isomeric forms of 1,2-disinapoylgentiobiose, 1-sinapoyl-2-feruloylgentiobiose, 1,2,2¢-trisinapoylgentiobiose, and 1,2¢-disinapoyl-2-feruloylgentiobiose. In general, internal leaves exhibited more constant chemical profiles.en
dc.identifier.citationSousa, C.; Valentão, P.; Rangel, Joana; Lopes, Graciliana; Pereira, J.A.; Ferreres, F.; Seabra, R.M.; Andrade, P.B. (2005). Influence of two fertilization regimes on the amounts of organic acids and phenolic compounds of tronchuda cabbage (Brassica oleracea L. var. costata DC). Journal of Agricultural and Food Chemistry. ISSN 0021-8561. 53:23, p. 9128-9132.en
dc.identifier.doi10.1021/jf051445f
dc.identifier.issn0021-8561
dc.identifier.urihttp://hdl.handle.net/10198/733
dc.language.isoengen
dc.peerreviewedyes
dc.publisherACSen
dc.subjectTronchuda cabbageen
dc.subjectBrassica oleracea L. var. costata DCen
dc.subjectOrganic acidsen
dc.subjectPhenolic compoundsen
dc.subjectOrganic and conventional productionen
dc.titleInfluence of two fertilization regimes on the amounts of organic acids and phenolic compounds of tronchuda cabbage (Brassica oleracea L. Var. costata DC)en
dc.typejournal article
dspace.entity.typePublication
person.familyNamePereira
person.givenNameJosé Alberto
person.identifier.ciencia-id611F-80B2-A7C1
person.identifier.orcid0000-0002-2260-0600
person.identifier.ridL-6798-2014
person.identifier.scopus-author-id57204366348
rcaap.rightsopenAccess
rcaap.typearticleen
relation.isAuthorOfPublication7932162e-a2da-4913-b00d-17babbe51857
relation.isAuthorOfPublication.latestForDiscovery7932162e-a2da-4913-b00d-17babbe51857

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