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  • Title: Comprehensive 3-year study of the phenolic profile of Moroccan monovarietal virgin olive oils from the Meknès region.
    Author: Bajoub A, Hurtado-Fernández E, Ajal el A, Ouazzani N, Fernández-Gutiérrez A, Carrasco-Pancorbo A.
    Journal: J Agric Food Chem; 2015 May 06; 63(17):4376-85. PubMed ID: 25846897.
    Abstract:
    The phenolic fraction of monovarietal virgin olive oils (VOOs) from the main Moroccan cultivar Picholine marocaine (142 samples from three different subareas of the Meknès region) was studied over three consecutive crop seasons (2011, 2012, and 2013) using a powerful LC-MS methodology. First, LC-ESI-TOF MS was used to get a comprehensive characterization of the phenolic fraction; afterward, LC-ESI-IT MS was utilized for further identification (MS/MS experiments) and quantitation purposes. A total of 28 phenolic compounds (and quinic acid) were determined, revealing the complex profile of Meknès VOO, composed, in order of abundance, by secoiridoids, phenolic alcohols, lignans, flavonoids, and phenolic acids. Tukey's test was applied to ascertain possible significant intraregional and/or interannual variations of the phenolic content of the Meknès VOOs under study. Results showed that the content of phenolic compounds was mainly related to the crop season.
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