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Chemometrics as a tool to discriminate geographical origin of Cyperus esculentus L. based on chemical composition

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dc.contributor.authorLopéz-Cortés, Isabel
dc.contributor.authorSalazar-García, Domingo C.
dc.contributor.authorMalheiro, Ricardo
dc.contributor.authorGuardiola, Vicente
dc.contributor.authorPereira, J.A.
dc.date.accessioned2016-11-30T10:34:20Z
dc.date.available2016-11-30T10:34:20Z
dc.date.issued2013
dc.description.abstracttIn the present study the chemical composition of Cyperus esculentus L. (tiger nut) from four distinctgeographical origin (Spain, Egypt, Nigeria, and South Africa) was assessed to observe the possible effect ofthe cultivation site in the fatty acids profile, sterols composition, and squalene and -tocopherol content.It was verified that the individual fatty acids as well as the different fatty acids fractions were severelyaffected by the geographical origin. Tiger nut oils were predominantly monounsaturated with lowerprevalence of saturated fatty acids, and with capability to provide appreciable amounts of essential fattyacids. The sterols fraction was affected as well, but in lower extent. -sitosterol was the most abundantsterol found, reaching nearly 60% of the total sterols found in tiger nut oils, with significant differencesamong geographical origins.The fatty acids data, together with the sterols and -tocopherol and squalene data were capable toseparate tiger nut samples according to their chemical composition and geographical origin when a prin-cipal component analysis was applied. The fatty acids profile could be applied as a possible geographicalauthenticity marker.pt_PT
dc.identifier.citationLopéz-Cortés, Isabel; Salazar-García, Domingo C.; Malheiro, Ricardo; Guardiola, Vicente; Pereira, J.A. (2013). Chemometrics as a tool to discriminate geographical origin of Cyperus esculentus L. based on chemical composition. Industrial Crops and Products. ISSN 0926-6690. 51, p. 19-25pt_PT
dc.identifier.doi10.1016/j.indcrop.2013.08.061pt_PT
dc.identifier.issn0926-6690
dc.identifier.urihttp://hdl.handle.net/10198/13549
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectCyperus esculentus L.pt_PT
dc.subjectGeographical originpt_PT
dc.subjectFatty acidspt_PT
dc.subjectα-Tocopherolpt_PT
dc.subjectSterolspt_PT
dc.subjectChemometric analysispt_PT
dc.titleChemometrics as a tool to discriminate geographical origin of Cyperus esculentus L. based on chemical compositionpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage25pt_PT
oaire.citation.startPage19pt_PT
oaire.citation.titleIndustrial Crops and Productspt_PT
oaire.citation.volume51pt_PT
person.familyNameMalheiro
person.familyNamePereira
person.givenNameRicardo
person.givenNameJosé Alberto
person.identifier.ciencia-id611F-80B2-A7C1
person.identifier.orcid0000-0002-7342-0511
person.identifier.orcid0000-0002-2260-0600
person.identifier.ridL-6798-2014
person.identifier.scopus-author-id25650218300
person.identifier.scopus-author-id57204366348
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication0fa7974d-abd3-444b-9a7e-16d16530a0f7
relation.isAuthorOfPublication7932162e-a2da-4913-b00d-17babbe51857
relation.isAuthorOfPublication.latestForDiscovery0fa7974d-abd3-444b-9a7e-16d16530a0f7

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