@misc{10481/55390,
year = {2018},
month = {10},
url = {http://hdl.handle.net/10481/55390},
abstract = {In Morocco, the recovery of olive agro-industrial by-products as potential sources of
high-added value substances has been underestimated so far. A comprehensive quantitative
characterization of olive leaves’ bioactive compounds is crucial for any attempt to change this
situation and to implement the valorization concept in emerging countries. Thus, the phenolic
fraction of olive leaves of 11 varieties (‘Arbequina’, ‘Hojiblanca’, ‘Frantoio’, ‘Koroneiki’, ‘Lechín’,
‘Lucque’, ‘Manzanilla’, ‘Picholine de Languedoc’, ‘Picholine Marocaine’, ‘Picual’ and ‘Verdal’),
cultivated in the Moroccan Meknès region, was investigated. Thirty eight phenolic or related
compounds (including 16 secoiridoids, nine flavonoids in their aglycone form, seven flavonoids in
glycosylated form, four simple phenols, one phenolic acid and one lignan) were determined in a
total of 55 samples by using ultrasonic-assisted extraction and liquid chromatography coupled to
electrospray ionization-ion trap mass spectrometry (LC-ESI-IT MS). Very remarkable quantitative
differences were observed among the profiles of the studied cultivars. ‘Picholine Marocaine’ variety
exhibited the highest total phenolic content (around 44 g/kg dry weight (DW)), and logically showed
the highest concentration in terms of various individual compounds. In addition, chemometrics
(principal components analysis (PCA) and stepwise-linear discriminant analysis (s-LDA)) were
applied to the quantitative phenolic compound data, allowing good discrimination of the selected
samples according to their varietal origin.},
organization = {This research was funded by the Spanish Government (Ministerio de Educación, Cultura y Deporte)
with a FPU fellowship (FPU13/06438), the Vice-Rector’s Office for International Relations and Development
Cooperation of the University of Granada, and the contract 30C0366700 (OTRI, University of Granada, Spain)},
publisher = {MDPI},
keywords = {Olive leaves},
keywords = {Moroccan region},
keywords = {Phenolic compounds},
keywords = {Liquid chromatography-mass spectrometry},
keywords = {Chemometrics},
keywords = {Metabolic profiling},
title = {Establishing the Phenolic Composition of Olea europaea L. Leaves from Cultivars Grown in Morocco as a Crucial Step Towards Their Subsequent Exploitation},
author = {Olmo García, Lucía and Bajoub, Aadil and Benlamaalam, Sara and Hurtado Fernández, Elena and Bagur González, María Gracia and Chigr, Mohammed and Mbarki, Mohamed and Fernández Gutiérrez, Alberto and Carrasco Pancorbo, Alegría},
}