title: In-Depth Two-Year Study of Phenolic Profile Variability among Olive Oils from Autochthonous and Mediterranean Varieties in Morocco, as Revealed by a LC-MS Chemometric Profiling Approach.
abstract: Olive oil phenolic fraction considerably contributes to the sensory quality and nutritional value of this foodstuff. Herein, the phenolic fraction of 203 olive oil samples extracted from fruits of four autochthonous Moroccan cultivars ("Picholine Marocaine", "Dahbia", "Haouzia" and "Menara"), and nine Mediterranean varieties recently introduced in Morocco ("Arbequina", "Arbosana", "Cornicabra", "Frantoio", "Hojiblanca", "Koroneiki", "Manzanilla", "Picholine de Languedoc" and "Picual"), were explored over two consecutive crop seasons (2012/2013 and 2013/2014) by using liquid chromatography-mass spectrometry. A total of 32 phenolic compounds (and quinic acid), belonging to five chemical classes (secoiridoids, simple phenols, flavonoids, lignans and phenolic acids) were identified and quantified. Phenolic profiling revealed that the determined phenolic compounds showed variety-dependent levels, being, at the same time, significantly affected by the crop season. Moreover, based on the obtained phenolic composition and chemometric linear discriminant analysis, statistical models were obtained allowing a very satisfactory classification and prediction of the varietal origin of the studied oils.
authors.affiliation: Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Ave. Fuentenueva, s/n, 18071 Granada, Spain. aliam80@hotmail.com.|Laboratory of Bioprocess and Bio-Interfaces, Faculty of Science and Technology, 23000 Beni Mellal, Morocco. aliam80@hotmail.com.
authors.forename: Aadil
authors.initials: A
authors.lastname: Bajoub
authors.affiliation: Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Ave. Fuentenueva, s/n, 18071 Granada, Spain. smedina@ugr.es.
authors.forename: Santiago
authors.initials: S
authors.lastname: Medina-Rodríguez
authors.affiliation: Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Ave. Fuentenueva, s/n, 18071 Granada, Spain. luciaolmo@ugr.es.
authors.forename: Lucía
authors.initials: L
authors.lastname: Olmo-García
authors.affiliation: Provincial Department of Agriculture of Azilal, P.O. Box 13, 22000 Azilal, Morocco. amine_266@hotmail.com.
authors.forename: El Amine
authors.initials: EA
authors.lastname: Ajal
authors.affiliation: Instituto de Biología Agrícola de Mendoza (IBAM), CONICET. Alt. Brown 500, Chacras de Coria, 5505 Mendoza, Argentina. rmonasterio@mendoza-conicet.gob.ar.
authors.forename: Romina P
authors.initials: RP
authors.lastname: Monasterio
authors.affiliation: Laboratory of Bioprocess and Bio-Interfaces, Faculty of Science and Technology, 23000 Beni Mellal, Morocco. hafidahanine0@gmail.com.
authors.forename: Hafida
authors.initials: H
authors.lastname: Hanine
authors.affiliation: Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Ave. Fuentenueva, s/n, 18071 Granada, Spain. albertof@ugr.es.
authors.forename: Alberto
authors.initials: A
authors.lastname: Fernández-Gutiérrez
authors.affiliation: Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Ave. Fuentenueva, s/n, 18071 Granada, Spain. alegriac@ugr.es.
authors.forename: Alegría
authors.initials: A
authors.lastname: Carrasco-Pancorbo
mesh_terms: D002853:Chromatography, Liquid; D005419:Flavonoids / Q000032:analysis*; D062385:Hydroxybenzoates / Q000032:analysis*; D013058:Mass Spectrometry; D009018:Morocco; D031658:Olea / Q000737:chemistry / Q000235:genetics; D000069463:Olive Oil / Q000737:chemistry* / Q000145:classification; D011801:Quinic Acid / Q000032:analysis*
chemical_list: D005419:Flavonoids; D062385:Hydroxybenzoates; D000069463:Olive Oil; D011801:Quinic Acid; C017616:phenolic acid
keywords: Mediterranean varieties; Moroccan varieties; liquid chromatography-mass spectrometry; olive oil; phenolic compounds; varietal origin