%0 Journal Article 
%A Deflaoui, L.
%A Setyaningsih, Widiastuti
%A Palma Lovillo, Miguel
%A Mekhoukhe, A.
%A Tamendjari, A.
%T Phenolic compounds in olive oil by solid phase extraction - Ultra performance liquid chromatography - Photodiode array detection for varietal characterization
%D 2021
%@ 1878-5352

%U http://hdl.handle.net/10498/24918
%X An new method for the extraction of phenolic compounds from olive oil has been proposed before the chromatographic analysis by UPLC-PDA (Ultra-Performance Liquid Chromatography-PhotoDiode Array). Recoveries for 20 individual phenolic compounds were compared using three cartridges of solid-phase extraction including C-18, Diol, and DVB (DiVinylBenzene) based cartridges. Diol based cartridge produced the best retention efficiency. The optimized method uses a reduced amount of solvents and allows for the determination of most phenolics in oil samples in less than 10 min. A full discrimination among the most common olive oil varieties was achieved using the relative levels for specific phenolics in the sample. Therefore, based in this study, a fingerprint based on the relative levels for quercetin, luteolin, oleuropein and vanillic acid can be proposed to characterized varietal olive oils. In that way, a detailed composition about phenolic compounds of varietal olive oils would not be needed for discrimination purposes. (C) 2021 The Authors. Published by Elsevier B.V.
%K Discrimination
%K Olive oils
%K Olive varieties
%K Phenolic compounds
%K Solid-phase extraction (SPE)
%~ Universidad de Cádiz