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dc.contributor.author
Martinez, Marcela Lilian
dc.contributor.author
Maestri, Damian
dc.date.available
2017-11-01T17:32:11Z
dc.date.issued
2008-12
dc.identifier.citation
Martinez, Marcela Lilian; Maestri, Damian; Oil chemical variation in walnut (Juglans regia L.) genotypes grown in Argentina; Wiley VCH Verlag; European Journal Of Lipid Science And Technology; 110; 12; 12-2008; 1183-1189
dc.identifier.issn
1438-7697
dc.identifier.uri
http://hdl.handle.net/11336/27328
dc.description.abstract
Walnut (Juglans regia L.) oil (WO) from the varieties Chandler, Franquette, Hartley, Lara, Mayette, Serr, Sorrento and Tulare were studied in order to evaluate genotypical variations in fatty acid (FA) and volatile compositions, tocopherol content and oxidative parameters. Oil content was found to range between 71.4 and 73.9%. Oils obtained by pressing presented low acid (0.05–0.22% oleic acid), peroxide (0.05–0.47 meq O2/kg oil), K232, and K270 values, and moderate (247–365 µg/g oil) total tocopherol contents. Variations in unsaturated fatty acid contents were between 16.1 and 25.4% (oleic acid), 52.5 and 58.9% (linoleic acid), and 11.4 and 16.5% (linolenic acid). Oxidative stability (OS), as measured by the Rancimat method, was poor (2.64–3.44 h) and it correlated positively with oleic and negatively with linolenic acid contents. In contrast to their low OS, the antioxidant capacity evaluated through the 2,2-diphenyl-1-picrylhydrazyl radical assay showed that the WO analyzed here have good radical-scavenging activity. Tocopherols appear to be the most important contributors to this biochemical property. The findings connected with volatile composition showed a similar qualitative pattern where aldehydes were present at higher concentration. Most of them seem to come from unsaturated FA mainly through a chemical pathway.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley VCH Verlag
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Fatty Acids
dc.subject
Oxidative Parameters
dc.subject
Tocopherol Content
dc.subject
Walnut Genotypes
dc.subject.classification
Alimentos y Bebidas
dc.subject.classification
Otras Ingenierías y Tecnologías
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
dc.title
Oil chemical variation in walnut (Juglans regia L.) genotypes grown in Argentina
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-10-18T14:53:58Z
dc.identifier.eissn
1438-9312
dc.journal.volume
110
dc.journal.number
12
dc.journal.pagination
1183-1189
dc.journal.pais
Alemania
dc.journal.ciudad
Berlín
dc.description.fil
Fil: Martinez, Marcela Lilian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
dc.description.fil
Fil: Maestri, Damian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
dc.journal.title
European Journal Of Lipid Science And Technology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/ejlt.200800121
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1002/ejlt.200800121
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