title: Classification of 'Chemlali' accessions according to the geographical area using chemometric methods of phenolic profiles analysed by HPLC-ESI-TOF-MS.
abstract: The present work describes a classification method of Tunisian 'Chemlali' olive oils based on their phenolic composition and geographical area. For this purpose, the data obtained by HPLC-ESI-TOF-MS from 13 samples of extra virgin olive oils, obtained from different production area throughout the country, were used for this study focusing in 23 phenolics compounds detected. The quantitative results showed a significant variability among the analysed oil samples. Factor analysis method using principal component was applied to the data in order to reduce the number of factors which explain the variability of the selected compounds. The data matrix constructed was subjected to a canonical discriminant analysis (CDA) in order to classify the oil samples. These results showed that 100% of cross-validated original group cases were correctly classified, which proves the usefulness of the selected variables.
authors.affiliation: Laboratoire Caractérisation et Qualité de l'Huile d'Olive, Centre de Biotechnologie de Borj Cedria, BP 901, 2050 Hammam-Lif, Tunisia; Department of Analytical Chemistry, University of Granada, Avda. Fuentenueva s/n, 18071 Granada, Spain; Funtional Food Research and Development Centre (CIDAF), Health Science Technological Park, Avda. Del Conocimiento s/n, 18100 Granada, Spain.
authors.forename: Amani
authors.initials: A
authors.lastname: Taamalli
authors.affiliation: Department of Analytical Chemistry, University of Granada, Avda. Fuentenueva s/n, 18071 Granada, Spain; Funtional Food Research and Development Centre (CIDAF), Health Science Technological Park, Avda. Del Conocimiento s/n, 18100 Granada, Spain.
authors.forename: David
authors.initials: D
authors.lastname: Arráez Román
authors.affiliation: Laboratoire Caractérisation et Qualité de l'Huile d'Olive, Centre de Biotechnologie de Borj Cedria, BP 901, 2050 Hammam-Lif, Tunisia.
authors.forename: Mokhtar
authors.initials: M
authors.lastname: Zarrouk
authors.affiliation: Department of Analytical Chemistry, University of Granada, Avda. Fuentenueva s/n, 18071 Granada, Spain; Funtional Food Research and Development Centre (CIDAF), Health Science Technological Park, Avda. Del Conocimiento s/n, 18100 Granada, Spain. Electronic address: ansegura@ugr.es.
authors.forename: Antonio
authors.initials: A
authors.lastname: Segura-Carretero
authors.affiliation: Department of Analytical Chemistry, University of Granada, Avda. Fuentenueva s/n, 18071 Granada, Spain; Funtional Food Research and Development Centre (CIDAF), Health Science Technological Park, Avda. Del Conocimiento s/n, 18100 Granada, Spain.
authors.forename: Alberto
authors.initials: A
authors.lastname: Fernández-Gutiérrez
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D000069463:Olive Oil / Q000737:chemistry*; D010636:Phenols / Q000032:analysis / Q000737:chemistry*; D010938:Plant Oils / Q000737:chemistry*
chemical_list: D000069463:Olive Oil; D010636:Phenols; D010938:Plant Oils
keywords: Discriminant classification; Geographical area; Liquid chromatography; Mass spectrometry; Monovarietal virgin olive oil; Phenolic compounds