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Metabolic and bioactivity insights into Brassica oleracea var. acephala

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dc.contributor.authorFerreres, Frederico
dc.contributor.authorFernandes, Fátima
dc.contributor.authorSousa, Carla
dc.contributor.authorValentão, Patrícia
dc.contributor.authorPereira, J.A.
dc.contributor.authorAndrade, Paula B.
dc.date.accessioned2011-01-13T16:30:34Z
dc.date.available2011-01-13T16:30:34Z
dc.date.issued2009
dc.description.abstractSeeds of Brassica oleracea var. acephala (kale) were analyzed by HPLC/UV-PAD/MSn-ESI. Several phenolic acids and flavonol derivatives were identified. The seeds of this B. oleracea variety exhibited more flavonol derivatives than those of tronchuda cabbage (Brassica oleracea var. costata), also characterized in this paper. Quercetin and isorhamnetin derivatives were found only in kale seeds. Oxalic, aconitic, citric, pyruvic, malic, quinic, shikimic, and fumaric acids were the organic acids present in these matrices, malic acid being predominant in kale and citric acid in tronchuda cabbage seeds. Acetylcholinesterase (AChE) inhibitory activity was determined in aqueous extracts from both seeds. Kale leaves and butterflies, larvae, and excrements of Pieris brassicae reared on kale were also evaluated. Kale seeds were the most effective AChE inhibitor, followed by tronchuda cabbage seeds and kale leaves. With regard to P. brassicae material, excrements exhibited stronger inhibitory capacity. These results may be explained by the presence of sinapine, an analogue of acetylcholine, only in seed materials. A strong concentration-dependent antioxidant capacity against DPPH, nitric oxide, and superoxide radicals was observed for kale seeds.por
dc.description.sponsorshipFCTpor
dc.description.sponsorshipWeare grateful to Fundação para a Ciência e a Tecnologia (FCT) for financial support of this work (PTDC/AGRAAM/64150/2006). F.F. is indebted to FCT for Grant SFRH/BD/37963/2007.
dc.identifier.citationFerreres, F.; Fernandes, F.; Sousa, C.; Valentão, P.; Pereira, J.A.; Andrade, P.B. (2009). Metabolic and bioactivity insights into Brassica oleracea var. acephala. Journal of Agricultural and Food Chemistry. ISSN 0021-8561. 57:19, p. 8884-8892por
dc.identifier.eissn1520-5118
dc.identifier.issn0021-8561
dc.identifier.urihttp://hdl.handle.net/10198/3109
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherACSpor
dc.relationPieris brassicae as laboratory of synthesis of new compounds with biological potential, starting from Brassica oleracea var. costata, Brassica oleracea var. acephala and Brassica rapa var. rapa.
dc.relationPIERIS BRASSICAE FED WITH BRASSICA OLERACEA VAR. COSTATA AND BRASSICA OLERACEA VAR. ACEPHALA AS SOURCE OF BIOACTIVE COMPOUNDS
dc.subjectBrassica oleracea L. var. acephalapor
dc.subjectBrassica oleracea L. var. costatapor
dc.subjectSeedspor
dc.subjectPieris bassicaepor
dc.subjectPhenolic compoundspor
dc.subjectOrganic acidspor
dc.titleMetabolic and bioactivity insights into Brassica oleracea var. acephalapor
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitlePieris brassicae as laboratory of synthesis of new compounds with biological potential, starting from Brassica oleracea var. costata, Brassica oleracea var. acephala and Brassica rapa var. rapa.
oaire.awardTitlePIERIS BRASSICAE FED WITH BRASSICA OLERACEA VAR. COSTATA AND BRASSICA OLERACEA VAR. ACEPHALA AS SOURCE OF BIOACTIVE COMPOUNDS
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876-PPCDTI/PTDC%2FAGR-AAM%2F64150%2F2006/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F37963%2F2007/PT
oaire.citation.endPage8892por
oaire.citation.issue57(19)por
oaire.citation.startPage8884por
oaire.citation.titleJournal of Agricultural and Food Chemistrypor
oaire.fundingStream5876-PPCDTI
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
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.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication7932162e-a2da-4913-b00d-17babbe51857
relation.isAuthorOfPublication.latestForDiscovery7932162e-a2da-4913-b00d-17babbe51857
relation.isProjectOfPublicationf81a81fb-2f99-45fe-bab7-2267d47bf7f3
relation.isProjectOfPublicatione6c5a113-78fb-4279-ba0c-f98bcdcedd12
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