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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
Rapid quantitative determination of oleuropein in olive leaves (Olea europaea) using mid-infrared spectroscopy combined with chemometric analyses
Industrial Crops and Products, Volume 37, No. 1, Year 2012
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Description
Oleuropein, the major active compound in olive leaf, is well known for its benefits for human health. Oleuropein is classically quantified by HPLC, which is time and chemical consuming, laborious and expensive. The aim of this work was to examine the potential of mid-infrared spectroscopy, as a rapid tool, to predict oleuropein content in olive leaf from five Tunisian cultivars (Chemlali, Chetoui, Meski, Sayali and Zarrazi) and one French cultivar (Bouteillan). The reference data of oleuropein content were obtained by the HPLC method. Hundred five samples were analyzed by HPLC and mid-infrared spectroscopy. Samples were randomly divided in a calibration set (73 samples) and in a validation set (32 samples). The spectral data sets were correlated with reference data of oleuropein content by using partial least squares (PLS) regression algorithm. The results showed that the PLS model gave satisfactory model for quantitative prediction of oleuropein content in olive leaf (relative error of prediction = 8.5%). The correlation coefficient was 0.91 and 0.74 for calibration set and validation set, respectively. It can be concluded that mid-infrared spectroscopy constitutes a promising technique for rapid quantification of oleuropein in olive leaf. © 2011 Elsevier B.V.
Authors & Co-Authors
Aouidi, Fathia
Tunisia, Tunis
University of Carthage, Institut National Des Sciences Appliquées et de Technologie
France, Marseille
Institut Méditerranéen de Biodiversité et D'ecologie Marine et Continentale
Dupuy, N.
France, Marseille
Institut Des Sciences Moléculaires de Marseille
Artaud, Jacques
France, Marseille
Institut Des Sciences Moléculaires de Marseille
Roussos, Sévastianos
France, Marseille
Institut Méditerranéen de Biodiversité et D'ecologie Marine et Continentale
Msallem, Monji
Tunisia, Sfax
Institut de L'olivier Sfax
Gaime-Perraud, Isabelle
France, Marseille
Institut Méditerranéen de Biodiversité et D'ecologie Marine et Continentale
Hamdi, Moktar
Tunisia, Tunis
University of Carthage, Institut National Des Sciences Appliquées et de Technologie
Statistics
Citations: 72
Authors: 7
Affiliations: 4
Identifiers
Doi:
10.1016/j.indcrop.2011.12.024
Study Approach
Quantitative