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dc.provenanceCONICET-
dc.creatorPagani, María Ayelén-
dc.creatorBaltanas, Miguel Angel-
dc.date2017-03-09T17:40:26Z-
dc.date2017-03-09T17:40:26Z-
dc.date2009-10-14-
dc.date2017-03-01T17:48:37Z-
dc.date.accessioned2019-04-29T15:39:13Z-
dc.date.available2019-04-29T15:39:13Z-
dc.date.issued2009-10-14-
dc.identifierPagani, María Ayelén; Baltanas, Miguel Angel; Production of natural antioxidants from vegetable oil deodorizer distillates: Effect of catalytic hydrogenation; Elsevier; Bioresource Technology; 101; 14-10-2009; 1369-1376-
dc.identifier0960-8524-
dc.identifierhttp://hdl.handle.net/11336/13669-
dc.identifier.urihttp://rodna.bn.gov.ar:8080/jspui/handle/bnmm/298631-
dc.descriptionNatural tocopherols are one of the main types of antioxidants found in living creatures, but they also have other critical biological functions. The biopotency of natural (+)alfa-tocopherol (RRR) is 36% higher than that of the synthetic racemic mixture and 300% higher than the SRR stereoisomer. Vegetable oil deodorizer distillates (DD) are an excellent source of natural tocopherols. Catalytic hydrogenation of DD preconcentrates has been suggested as a feasible route for recovery of tocopherols in high yield. However, it is important to know whether the hydrogenation operation, as applied to these tocopherol-rich mixtures, is capable of preserving the chiral (RRR) character, which is critical to its biopotency.(+)alfa-tocopherol enriched sunflower oil and methyl stearate, as well as sunflower oil DD, were fully hydrogenated using commercial Ni and Pd catalysts (120?180 C; 20?60 psig). Products were analyzed by chiral HPLC. Results show that the desired chiral configuration (RRR) is fully retained. Thus, the hydrogenation route can be safely considered as a valid alternative for increasing the efficiency of tocopherol recovery processes from DDs while preserving their natural characteristics.-
dc.descriptionFil: Pagani, María Ayelén. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); Argentina-
dc.descriptionFil: Baltanas, Miguel Angel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); Argentina-
dc.formatapplication/pdf-
dc.formatapplication/pdf-
dc.formatapplication/pdf-
dc.languageeng-
dc.publisherElsevier-
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.biortech.2009.09.068-
dc.rightsinfo:eu-repo/semantics/restrictedAccess-
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/-
dc.sourcereponame:CONICET Digital (CONICET)-
dc.sourceinstname:Consejo Nacional de Investigaciones Científicas y Técnicas-
dc.sourceinstacron:CONICET-
dc.source.urihttp://hdl.handle.net/11336/13669-
dc.subjectNATURAL TOCOPHEROLS-
dc.subjectDEODORIZER DISTILLATES-
dc.subjectCATALYTIC HYDROGENATION-
dc.subjectOtras Ciencias Químicas-
dc.subjectCiencias Químicas-
dc.subjectCIENCIAS NATURALES Y EXACTAS-
dc.titleProduction of natural antioxidants from vegetable oil deodorizer distillates: Effect of catalytic hydrogenation-
dc.typeinfo:eu-repo/semantics/article-
dc.typeinfo:eu-repo/semantics/publishedVersion-
dc.typeinfo:ar-repo/semantics/articulo-
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