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Influence of refining processes on content of bioactive compounds, rheology, and 9 texture of olive pomace oil for use in topical formulations

AutorSánchez-Gutiérrez, Carla Andrea; Ruiz Méndez, Mª Victoria ; Jiménez-Castellanos, María Rosa; Lucero, María Jesús
Palabras claveBioactive compounds
Olive pomace oil
Refining processes
Rheology
Topical formulations
Fecha de publicaciónsep-2017
EditorJohn Wiley & Sons
CitaciónEuropean Journal of Lipid Science and Technology 119 (9): 1600408 (2017)
ResumenRetaining the bioactive ingredients of olive pomace oil is a crucial step in ensuring their functional or pharmaceutical value. To help select the best method for retaining bioactive compounds in olive pomace oil, three refining processes, namely, chemical, classical physical, or molecular distillation, were compared at different temperatures. For each method, the contents of triacylglycerols, fatty acids (oleic acid, linoleic, and linolenic acids), triterpenic acids (oleanolic and maslinic acids), and unsaponifiable matter (squalene, aliphatic, sterols, and terpenic) were studied. We observed that physical refining by molecular distillation provided oils with interesting amounts of bioactive compounds, especially triterpenic acids. Of these oils, the samples submitted to a temperature of 190°C exhibited a greater albeit low acidity compared with the other oils obtained by chemical and classical physical refining but exhibited higher amounts of all bioactive compounds. Conversely, the molecular distillation refining process had only a slight effect on the values of the consistency index. The firmness, cohesiveness, and adhesiveness parameters from texture profile analysis indicated that in general, all deodorized oils had high smoothness and spreadability but low adhesiveness. Molecular distillation was concluded to be the best refining process. Nevertheless, it is necessary to improve the working conditions of this process.
Descripción26 Páginas; 5 Tablas; 4 Figuras
Versión del editorhttp://dx.doi.org/10.1002/ejlt.201600408
URIhttp://hdl.handle.net/10261/158146
DOI10.1002/ejlt.201600408
ISSN1438-7697
E-ISSN1438-9312
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