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Determination of Sterol and Fatty Acid Compositions, Oxidative Stability, and Nutritional Value of Six Walnut (Juglans regia L.) Cultivars Grown in Portugal

2003Journal article Open access
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dc.contributor.authorAmaral, Joana S.
dc.contributor.authorCasal, Susana
dc.contributor.authorPereira, J.A.
dc.contributor.authorSeabra, Rosa M.
dc.contributor.authorOliveira, Beatriz
dc.date.accessioned2008-05-28T09:55:24Z
dc.date.available2008-05-28T09:55:24Z
dc.date.issued2003
dc.description.abstractSix cultivars (Franquette, Marbot, Mayette, Mellanaise, Lara, and Parisienne) of walnuts (Juglans regia L.) were collected during the 2001 crop, from Bragança, Portugal. Chemical composition, including moisture, total oil content, crude protein, ash, carbohydrates, and nutritional value, was evaluated. Fat was the predominant component, ranging from 62.3 to 66.5%. Total oil was extracted and analyzed for fatty acids, sterols, oxidative stability, and peroxide value. Fatty acids and sterols were determined by gas-liquid chromatography coupled to a flame ionization detector. Eighteen fatty acids were quantified. Polyunsaturated fatty acids and, in particular, linoleic acid were predominant. â-Sitosterol, ¢5-avenasterol, and campesterol were the major sterols found. Differences were observed among the studied cultivars, especially in peroxide values and in the sterol profile.en
dc.identifier.citationAmaral, J.S.; Casal, S.; Pereira, J.A.; Seabra, R. M.; Oliveira, M.B.P.P. (2003). Determination of sterol and fatty acid compositions, oxidative stability and nutritional value of six walnut (Juglans regia L.) cultivars grown in Portugal. Journal of Agricultural and Food Chemistry. ISSN 0021-8561. 51:26, p.7698-7702en
dc.identifier.doi10.1021/jf030451d
dc.identifier.issn0021-8561en
dc.identifier.slugJournal of Agricultural and Food Chemistryen
dc.identifier.urihttp://hdl.handle.net/10198/628
dc.language.isoengen
dc.language.rfc3066engen
dc.number26en
dc.pagination7698-7702en
dc.peerreviewedyesen
dc.publisherACSen
dc.subjectJuglans regia L.en
dc.subjectWalnuten
dc.subjectChemical compositionen
dc.subjectFatty acid compositionen
dc.subjectSterol compositionen
dc.titleDetermination of Sterol and Fatty Acid Compositions, Oxidative Stability, and Nutritional Value of Six Walnut (Juglans regia L.) Cultivars Grown in Portugalen
dc.typejournal article
dc.volume51en
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.rightsopenAccessen
rcaap.typearticle
relation.isAuthorOfPublication42be2cf4-adc4-4e7f-ac60-7aab515b38cd
relation.isAuthorOfPublication7932162e-a2da-4913-b00d-17babbe51857
relation.isAuthorOfPublication.latestForDiscovery7932162e-a2da-4913-b00d-17babbe51857

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