Rate constants of oxidation of unsaturated fatty esters studied by chemiluminescence
FAYOLLE, Bruno
Aménagement, Développement, Environnement, Santé et Sociétés [ADES]
Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
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Aménagement, Développement, Environnement, Santé et Sociétés [ADES]
Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
FAYOLLE, Bruno
Aménagement, Développement, Environnement, Santé et Sociétés [ADES]
Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
< Leer menos
Aménagement, Développement, Environnement, Santé et Sociétés [ADES]
Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
Idioma
en
Article de revue
Este ítem está publicado en
Chemistry and Physics of Lipids. 2012, vol. 165, p. 753–759
Elsevier
Resumen en inglés
This study deals with oxidation kinetics of three unsaturated fatty esters: methyl oleate, methyl linoleate and methyl linolenate at temperatures ranging from 90 to 150 °C. The reaction was monitored by chemiluminescence. ...Leer más >
This study deals with oxidation kinetics of three unsaturated fatty esters: methyl oleate, methyl linoleate and methyl linolenate at temperatures ranging from 90 to 150 °C. The reaction was monitored by chemiluminescence. A kinetic model was derived from a simple mechanistic scheme, in which initiation is due to hydroperoxides decomposition, whereas propagation results from the abstraction of the most labile hydrogen and termination results only from the bimolecular combination of peroxyl radicals. Analysis of induction period duration indicated that hydroperoxides mainly decompose by a bimolecular process. The model well predicts the main features of the experimental chemiluminescence curves. Kinetic parameters of the three unsaturated fatty esters were assessed from inverse method and discussed.< Leer menos
Palabras clave en inglés
Unsaturated fatty esters
Oxidation
Kinetics
Chemiluminescence
Orígen
Importado de HalCentros de investigación