title: Dependence of fatty-acid composition of edible oils on their enrichment in olive phenols.
abstract: Olive phenol extracts from waste from olive-oil production (alperujo) have been obtained by microwave-assisted extraction and used for edible oil enrichment. The extracts as such or after extractant removal were used to enrich edible oils of different fatty acid composition by liquid-liquid or solid-liquid extraction, respectively. The distribution ratios of the phenols in the different oils [olive-orujo (the waste of milled olives from which low-quality oil is obtained), sunflower, high oleic-acid content sunflower, coconut, and linseed] showed a given order as a function of phenol polarity and molecular weight, with higher distribution factors for more polar and lower molecular-weight phenols. Concerning oil composition, those oils with higher concentration of polyunsaturated fatty acids yielded higher phenol distribution factors; oils with higher concentrations of saturated fatty acids yielded lower distribution factors.
authors.affiliation: Department of Analytical Chemistry, Annex Marie Curie Building, Campus of Rabanales, University of Cordoba, 14071 Cordoba, Spain.
authors.forename: María Victoria
authors.initials: MV
authors.lastname: Girón
authors.forename: José
authors.initials: J
authors.lastname: Ruiz-Jiménez
authors.forename: María Dolores
authors.initials: MD
authors.lastname: Luque de Castro
mesh_terms: D005227:Fatty Acids / Q000032:analysis*; D005231:Fatty Acids, Unsaturated / Q000032:analysis; D005527:Food, Fortified / Q000032:analysis*; D005638:Fruit / Q000737:chemistry; D007220:Industrial Waste / Q000032:analysis*; D031658:Olea / Q000737:chemistry*; D000069463:Olive Oil; D010636:Phenols / Q000032:analysis*; D010936:Plant Extracts / Q000737:chemistry; D010938:Plant Oils / Q000032:analysis* / Q000737:chemistry
chemical_list: D005227:Fatty Acids; D005231:Fatty Acids, Unsaturated; D007220:Industrial Waste; D000069463:Olive Oil; D010636:Phenols; D010936:Plant Extracts; D010938:Plant Oils