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Triacylglycerol composition of walnut (Juglans regia L.) cultivars: Characterization by HPLC-ELSD and chemometrics

2004Journal article Restricted access
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dc.contributor.authorAmaral, Joana S.
dc.contributor.authorCunha, Sara C.
dc.contributor.authorAlves, M. Rui
dc.contributor.authorPereira, J.A.
dc.contributor.authorSeabra, Rosa M.
dc.contributor.authorOliveira, Beatriz
dc.date.accessioned2008-05-28T10:10:13Z
dc.date.available2004
dc.date.issued2004
dc.date.submitted2004
dc.description.abstractA total of 26 walnut ( Juglans regia L.) samples from 9 cultivars (Arco, Franquette, Hartley, Lara, Marbot, Mayette, Mellanaise, Parisienne, and Rego) harvested in the 2001, 2002, and 2003 crop years and grown in two geographical origins (Bragancüa and Coimbra, Portugal) were evaluated with regard to their triacylglycerol composition. The methodology employed was reversed-phase highperformance liquid chromatography coupled to an evaporative light-scattering detector (RP-HPLCELSD) after extraction of the lipidic fraction of the nuts. Nine compounds were separated, identified, and quantified. All samples presented an identical qualitative profile composed by LLnLn, LLLn, LLL, OLLn, OLL, PLL, OOL, and PLO (P ) palmitoyl; O ) oleoyl; L ) linoleoyl; Ln ) linonenoyl). Trilinolein (LLL) was the major triglyceride, followed by dilinoeoyl-oleoyl-glycerol (OLL) and dilinoleoyl-linolenoylglycerol (LLLn), with mean values of 37.7, 18.5, and 18.4%, respectively. Significant differences in composition were found between cultivars, and these differences were also significant when cultivars were grouped by year of production, showing that besides genetic factors, the triacylglycerol composition can be strongly influenced by environmental factors.en
dc.identifier.citationAmaral, J.S.; Cunha, S.C.; Alves, M.R.; Pereira, J.A.; Seabra, R. M.; Oliveira, M.B.P.P. (2004). Triacylglycerol composition of walnut (Juglans regia L.) cultivars: characterization by HPLC/ELSD and chemometrics. Journal of Agricultural and Food Chemistry. ISSN 0021-8561. 52:26, p.7964-7969en
dc.identifier.doi10.1021/jf048918n
dc.identifier.issn0021-8561en
dc.identifier.slugJournal of Agricultural and Food Chemistryen
dc.identifier.urihttp://hdl.handle.net/10198/630
dc.language.isoengen
dc.language.rfc3066engen
dc.number26en
dc.pagination7964-7969en
dc.peerreviewedyesen
dc.publisherACSen
dc.subjectTriacylglycerolsen
dc.subjectJuglans regia L.en
dc.subjectWalnut oilen
dc.subjectHPLC-ELSDen
dc.titleTriacylglycerol composition of walnut (Juglans regia L.) cultivars: Characterization by HPLC-ELSD and chemometricsen
dc.typejournal article
dc.volume52en
dspace.entity.typePublication
person.familyNameAmaral
person.familyNamePereira
person.givenNameJoana S.
person.givenNameJosé Alberto
person.identifier.ciencia-id5319-7DE8-BEDA
person.identifier.ciencia-id611F-80B2-A7C1
person.identifier.orcid0000-0002-3648-7303
person.identifier.orcid0000-0002-2260-0600
person.identifier.ridL-6798-2014
person.identifier.scopus-author-id57204366348
rcaap.rightsrestrictedAccessen
rcaap.typearticle
relation.isAuthorOfPublication42be2cf4-adc4-4e7f-ac60-7aab515b38cd
relation.isAuthorOfPublication7932162e-a2da-4913-b00d-17babbe51857
relation.isAuthorOfPublication.latestForDiscovery42be2cf4-adc4-4e7f-ac60-7aab515b38cd

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