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Recolector de Ciencia Abierta, RECOLECTA
Doctoral thesis . 2017
License: CC BY NC ND
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Recolector de Ciencia Abierta, RECOLECTA
Doctoral thesis . 2020
License: CC BY NC ND
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Desarrollo de Metodologías Analíticas para la Caracterización Química de Aceite de Oliva Virgen

Authors: Lara Ortega, Felipe Jesús;

Desarrollo de Metodologías Analíticas para la Caracterización Química de Aceite de Oliva Virgen

Abstract

El aceite de oliva tiene especial relevancia en España, sobre todo en Jaén. Su valor nutricional deriva de su composición, estando constituido mayoritariamente por triglicéridos (siendo el ácido oleico el ácido graso mayoritario); la fracción minoritaria incluye otros compuestos de interés, entre los que destacamos los antioxidantes (compuestos fenólicos y tocoferoles). Los métodos convencionales/oficiales para determinación de compuestos antioxidantes y peróxidos en aceite de oliva son lentos, laboriosos y poco respetuosos con el medio ambiente. Por ello, en la primera parte de esta Tesis se desarrollaron métodos automáticos de análisis mediante multiconmutación, como métodos alternativos para mejorar los métodos convencionales/oficiales. En la segunda parte, se estudia la espectrometría de masas acoplada a nuevas fuentes de ionización (plasma de baja temperatura, descarga de barrera dieléctrica y papel spray) con dos propósitos: contribuir a caracterizar el aceite de oliva mediante espectrometría de masas directa y ampliar la cobertura de ionización respecto a las fuentes convencionales.

Olive oil has special relevance in Spain, especially in Jaén. Its nutritional value derives from its composition; the major fraction consisting of triglycerides (oleic acid being the major fatty acid); and on the other hand, the minority compounds, highlighting the antioxidants (phenolic compounds and tocopherols). The conventional/official methods for the determination of antioxidant compounds and peroxides in olive oil are slow, laborious and not environmentally friendly. Therefore, in the first part of this Thesis, multiconmutated automatic methods of analysis were developed as an alternative to determine these compounds in order to improve conventional/official methods. In the second part, mass spectrometry coupled to new sources of ionization (low temperature plasma, dielectric barrier discharge ionization and paper spray) is studied to two purposes: to contribute to the characterization of olive oil by direct mass spectrometry, and to expand ionization coverage regarding conventional sources.

Tesis Univ. Jaén. Departamento de Química Física y Analítica. Leída el 14 de diciembre de 2017.

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Keywords

23.01.03 Análisis cromatográfico, 23.01.05 Espectroscopía de emisión, espectrometría de masas, 23.01.01 Química analítica. Espectroscopía de absorción, automatización, Aceite de oliva, multiconmutación, multiconmutation, 23.01.06 Fluorimetría, Olive oil, automation, mass spectrometry, 23.01.10 Espectroscopía de masas

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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