title: A new analytical method for quantification of olive and palm oil in blends with other vegetable edible oils based on the chromatographic fingerprints from the methyl-transesterified fraction.
abstract: A new analytical method for the quantification of olive oil and palm oil in blends with other vegetable edible oils (canola, safflower, corn, peanut, seeds, grapeseed, linseed, sesame and soybean) using normal phase liquid chromatography, and applying chemometric tools was developed. The procedure for obtaining of chromatographic fingerprint from the methyl-transesterified fraction from each blend is described. The multivariate quantification methods used were Partial Least Square-Regression (PLS-R) and Support Vector Regression (SVR). The quantification results were evaluated by several parameters as the Root Mean Square Error of Validation (RMSEV), Mean Absolute Error of Validation (MAEV) and Median Absolute Error of Validation (MdAEV). It has to be highlighted that the new proposed analytical method, the chromatographic analysis takes only eight minutes and the results obtained showed the potential of this method and allowed quantification of mixtures of olive oil and palm oil with other vegetable oils.
authors.affiliation: Department of Analytical Chemistry, University of Granada, c/Fuentenueva, s.n, Granada, E-18071 Spain. Electronic address: amariajc@ugr.es.
authors.forename: Ana M
authors.initials: AM
authors.lastname: Jiménez-Carvelo
authors.affiliation: Department of Analytical Chemistry, University of Granada, c/Fuentenueva, s.n, Granada, E-18071 Spain.
authors.forename: Antonio
authors.initials: A
authors.lastname: González-Casado
authors.affiliation: Department of Analytical Chemistry, University of Granada, c/Fuentenueva, s.n, Granada, E-18071 Spain.
authors.forename: Luis
authors.initials: L
authors.lastname: Cuadros-Rodríguez
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D004951:Esterification; D008745:Methylation; D000069463:Olive Oil / Q000737:chemistry*; D000073878:Palm Oil / Q000737:chemistry*; D025341:Principal Component Analysis
chemical_list: D000069463:Olive Oil; D000073878:Palm Oil
keywords: Blends; Fingerprint; Liquid chromatography; Olive oil; Palm oil; Vegetable oil