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Eruca sativa: Benefits as antioxidants source versus risks of already banned pesticides

2015-03Journal article Restricted access
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dc.contributor.authorMaia, M. Luz
dc.contributor.authorCorreia-Sá, Luísa
dc.contributor.authorCoelho, Andreia
dc.contributor.authorBarroso, M. Fátima
dc.contributor.authorDomingues, Valentina F.
dc.contributor.authorDelerue-Matos, Cristina
dc.date.accessioned2016-01-21T16:07:14Z
dc.date.available2016-01-21T16:07:14Z
dc.date.issued2015-03
dc.description.abstractEruca sativa (rocket salad) has been intensely consumed all over the world, insomuch as, this work was undertaken to evaluate the antioxidant status and the environmental contamination (positive and negative nutritional contribution) of leaves and stems from this vegetable. Antioxidant capacity of rocket salad was assessed by mean of optical methods, such as the total phenolic content (TPC), reducing power assay and DPPH radical scavenging activity. The extent of the environmental contamination was reached through the quantification of thirteen organochlorine pesticides (OCP) by using gas chromatography coupled with electron-capture detector (GC-ECD) and compound confirmations employing gas chromatography tandem mass-spectrometry (GC-MS/MS). The OCP residues were extracted by using Quick, Easy, Cheap, Effective, Rugged and Safe (QuEChERS) methodology.The extent of the environmental contamination was reached through the quantification of thirteen OCP by using gas chromatography coupled with electron-capture detector (GC-ECD) and compound confirmations employing GC-MS/MS. The OCP residues were extracted by using Quick, Easy, Cheap, Effective, Rugged and Safe (QuEChERS) methodology. This demonstrated that leaves presented more antioxidant activity than stems, emphasizing that leaves contained six times more polyphenolic compounds than stems. In what concerns the OCP occurrence, the average recoveries obtained at the three levels tested (40, 60 and 80 µg kg−1) ranged from 55% to 149% with a relative standard deviation of 11%, (except hexachrorobenzene). Three vegetables samples were collected from supermarkets and analysed following this study. According to data, only one sample achieved 16.21 of β-hexachlorocyclohexane, confirmed by GC-MS/MS. About OCP quantification, the data indicated that only one sample achieved 16.21 µg kg−1 of β-hexachlorocyclohexane, confirmed by GC-MS/MS, being the QuEChERS a good choice for the of OCPs extraction. Furthermore, the leaves consumption guaranty higher levels of antioxidants than stems.pt_PT
dc.identifier.doi10.1080/03601234.2015.1000178pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.22/7444
dc.language.isoengpt_PT
dc.publisherTaylor & Francispt_PT
dc.relation.ispartofseriesJournal of Environmental Science and Health, Part B: Pesticides, Food Contaminants, and Agricultural Wastes;Vol. 50, Issue 5
dc.relation.publisherversionhttp://www.tandfonline.com/doi/abs/10.1080/03601234.2015.1000178pt_PT
dc.subjectRocket saladpt_PT
dc.subjectAntioxidant capacitypt_PT
dc.subjectOrganochlorine pesticidespt_PT
dc.subjectQuEChERSpt_PT
dc.subjectGC-ECDpt_PT
dc.subjectGC-MS/MSpt_PT
dc.titleEruca sativa: Benefits as antioxidants source versus risks of already banned pesticidespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage345pt_PT
oaire.citation.startPage338pt_PT
oaire.citation.titleJournal of Environmental Science and Health, Part B: Pesticides, Food Contaminants, and Agricultural Wastespt_PT
oaire.citation.volume50pt_PT
person.familyNamede Sá Barroso
person.familyNameDomingues
person.familyNameDelerue-Matos
person.givenNameMaria de Fátima
person.givenNameValentina Maria Fernandes
person.givenNameCristina
person.identifier.ciencia-idAF16-22E5-5EBD
person.identifier.ciencia-id4E16-791D-6664
person.identifier.ciencia-id9A1A-43FB-5C27
person.identifier.orcid0000-0001-9011-5992
person.identifier.orcid0000-0003-3472-849X
person.identifier.orcid0000-0002-3924-776X
person.identifier.ridD-4990-2013
person.identifier.scopus-author-id25631648000
person.identifier.scopus-author-id6603741848
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication3d701c85-4580-4614-be6d-5a1abc8cf729
relation.isAuthorOfPublicationbe653ab6-34ec-4329-972a-eee990a7ec66
relation.isAuthorOfPublication09f6a7bd-2f15-42b0-adc5-04bd22210519
relation.isAuthorOfPublication.latestForDiscovery3d701c85-4580-4614-be6d-5a1abc8cf729

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