Chemical, thermal and viscous characterization of high-oleic sunflower and olive pomace acid oils and derived estolides

This work deals with the chemical, thermal and viscous characterization of a variety of estolides, prepared from higholeic sunflower and olive pomace acid oils, using different acid-catalyzed synthesis protocols and reaction times. Estolides with weight-average molecular weights between 1.7 and 3.4...

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Autores: García Zapateiro, Luis Alberto, Franco Gómez, José María, Valencia Barragán, Concepción, Delgado Canto, Miguel Ángel, Gallegos Montes, Críspulo, Ruiz Méndez, M. V.
Tipo de recurso: artículo
Fecha de publicación:2013
País:España
Institución:Universidad de Huelva (UHU)
Repositorio:Arias Montano. Repositorio Institucional de la Universidad de Huelva
Idioma:inglés
OAI Identifier:oai:ariasmontano.uhu.es:10272/13527
Acceso en línea:http://hdl.handle.net/10272/13527
Access Level:acceso abierto
Palabra clave:Biolubricants
Byproducts
Estolides
High-oleic sunflower acid oil
Olive pomace acid oil
Thermal analysis
Viscosity
Análisis térmico
Biolubricantes
Estólido
Oleínas ácidas de girasol alto oleico
Oleínas ácidas de orujo de oliva
Subproductos
Viscosidad
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spelling Chemical, thermal and viscous characterization of high-oleic sunflower and olive pomace acid oils and derived estolidesGarcía Zapateiro, Luis AlbertoFranco Gómez, José MaríaValencia Barragán, ConcepciónDelgado Canto, Miguel ÁngelGallegos Montes, CríspuloRuiz Méndez, M. V.BiolubricantsByproductsEstolidesHigh-oleic sunflower acid oilOlive pomace acid oilThermal analysisViscosityAnálisis térmicoBiolubricantesEstólidoOleínas ácidas de girasol alto oleicoOleínas ácidas de orujo de olivaSubproductosViscosidadThis work deals with the chemical, thermal and viscous characterization of a variety of estolides, prepared from higholeic sunflower and olive pomace acid oils, using different acid-catalyzed synthesis protocols and reaction times. Estolides with weight-average molecular weights between 1.7 and 3.4 times higher than the original acid oils were obtained. The molecular weight of the estolides was higher when using the sulphuric acid-catalyzed method and a reaction time of 3-6 h. Estolides presented higher freezing temperatures than acid oils. In general, viscosity values are related to estolide molecular weight. Significant increments in viscosities were found in comparison with acid oils. Maximum viscosity values were obtained for estolides prepared using the sulphuric acidcatalyzed method. The largest viscosity increments in olive pomace acid oil-derived estolides were observed during the first 6 hours of reaction, due to an increase in the molecular weight; longer reaction times yielded adverse results. The temperature dependence of viscosity for all estolides studied is significantly larger than for the original acid oils.Consejo Superior de Investigaciones Científicas20132013-01-0120132013-01-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10272/13527reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelvainstname:Universidad de Huelva (UHU)InglésengMinisterio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 Not available Not availableopen accesshttp://purl.org/coar/access_right/c_abf2Atribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:ariasmontano.uhu.es:10272/135272026-06-02T14:58:11Z
dc.title.none.fl_str_mv Chemical, thermal and viscous characterization of high-oleic sunflower and olive pomace acid oils and derived estolides
title Chemical, thermal and viscous characterization of high-oleic sunflower and olive pomace acid oils and derived estolides
spellingShingle Chemical, thermal and viscous characterization of high-oleic sunflower and olive pomace acid oils and derived estolides
García Zapateiro, Luis Alberto
Biolubricants
Byproducts
Estolides
High-oleic sunflower acid oil
Olive pomace acid oil
Thermal analysis
Viscosity
Análisis térmico
Biolubricantes
Estólido
Oleínas ácidas de girasol alto oleico
Oleínas ácidas de orujo de oliva
Subproductos
Viscosidad
title_short Chemical, thermal and viscous characterization of high-oleic sunflower and olive pomace acid oils and derived estolides
title_full Chemical, thermal and viscous characterization of high-oleic sunflower and olive pomace acid oils and derived estolides
title_fullStr Chemical, thermal and viscous characterization of high-oleic sunflower and olive pomace acid oils and derived estolides
title_full_unstemmed Chemical, thermal and viscous characterization of high-oleic sunflower and olive pomace acid oils and derived estolides
title_sort Chemical, thermal and viscous characterization of high-oleic sunflower and olive pomace acid oils and derived estolides
dc.creator.none.fl_str_mv García Zapateiro, Luis Alberto
Franco Gómez, José María
Valencia Barragán, Concepción
Delgado Canto, Miguel Ángel
Gallegos Montes, Críspulo
Ruiz Méndez, M. V.
author García Zapateiro, Luis Alberto
author_facet García Zapateiro, Luis Alberto
Franco Gómez, José María
Valencia Barragán, Concepción
Delgado Canto, Miguel Ángel
Gallegos Montes, Críspulo
Ruiz Méndez, M. V.
author_role author
author2 Franco Gómez, José María
Valencia Barragán, Concepción
Delgado Canto, Miguel Ángel
Gallegos Montes, Críspulo
Ruiz Méndez, M. V.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv
dc.subject.none.fl_str_mv Biolubricants
Byproducts
Estolides
High-oleic sunflower acid oil
Olive pomace acid oil
Thermal analysis
Viscosity
Análisis térmico
Biolubricantes
Estólido
Oleínas ácidas de girasol alto oleico
Oleínas ácidas de orujo de oliva
Subproductos
Viscosidad
topic Biolubricants
Byproducts
Estolides
High-oleic sunflower acid oil
Olive pomace acid oil
Thermal analysis
Viscosity
Análisis térmico
Biolubricantes
Estólido
Oleínas ácidas de girasol alto oleico
Oleínas ácidas de orujo de oliva
Subproductos
Viscosidad
description This work deals with the chemical, thermal and viscous characterization of a variety of estolides, prepared from higholeic sunflower and olive pomace acid oils, using different acid-catalyzed synthesis protocols and reaction times. Estolides with weight-average molecular weights between 1.7 and 3.4 times higher than the original acid oils were obtained. The molecular weight of the estolides was higher when using the sulphuric acid-catalyzed method and a reaction time of 3-6 h. Estolides presented higher freezing temperatures than acid oils. In general, viscosity values are related to estolide molecular weight. Significant increments in viscosities were found in comparison with acid oils. Maximum viscosity values were obtained for estolides prepared using the sulphuric acidcatalyzed method. The largest viscosity increments in olive pomace acid oil-derived estolides were observed during the first 6 hours of reaction, due to an increase in the molecular weight; longer reaction times yielded adverse results. The temperature dependence of viscosity for all estolides studied is significantly larger than for the original acid oils.
publishDate 2013
dc.date.none.fl_str_mv 2013
2013-01-01
2013
2013-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10272/13527
url http://hdl.handle.net/10272/13527
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Ministerio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 Not available Not available
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Consejo Superior de Investigaciones Científicas
publisher.none.fl_str_mv Consejo Superior de Investigaciones Científicas
dc.source.none.fl_str_mv reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelva
instname:Universidad de Huelva (UHU)
instname_str Universidad de Huelva (UHU)
reponame_str Arias Montano. Repositorio Institucional de la Universidad de Huelva
collection Arias Montano. Repositorio Institucional de la Universidad de Huelva
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869425168421486592
score 15,198674

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