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dc.contributor.author
Pagani, María Ayelén
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dc.contributor.author
Baltanas, Miguel Angel
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dc.date.available
2017-03-09T17:40:26Z
dc.date.issued
2009-10-14
dc.identifier.citation
Pagani, 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.identifier.issn
0960-8524
dc.identifier.uri
http://hdl.handle.net/11336/13669
dc.description.abstract
Natural 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.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Natural Tocopherols
dc.subject
Deodorizer Distillates
dc.subject
Catalytic Hydrogenation
dc.subject.classification
Otras Ciencias Químicas
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dc.subject.classification
Ciencias Químicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Production of natural antioxidants from vegetable oil deodorizer distillates: Effect of catalytic hydrogenation
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-03-01T17:48:37Z
dc.journal.volume
101
dc.journal.pagination
1369-1376
dc.journal.pais
Países Bajos
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dc.description.fil
Fil: 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.description.fil
Fil: 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.journal.title
Bioresource Technology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.biortech.2009.09.068
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