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Article Dans Une Revue Journal of Chromatography A Année : 2020

Chiroptical fingerprints to characterize lavender and lavandin essential oils

Résumé

Polarimetric HPLC detector was used to acquire chromatograms for lavender/lavandin essentials oils (EOs) on different chiral stationary phases. Amylose tris-(3,5-dichloro-phenylcarbamate) immobilized on silica allowed the best separation of the numerous chiral phytomarkers and was thus used to obtain a chiropti- cal fingerprint for 158 samples of French lavender/lavandin EOs. Samples from different varieties (Abrial, Fine, Grosso, Maillette, Matherone, Sumian and Super) were collected over three crop years (2012, 2013 and 2014), from four different locations in France (“Alpes-de-Haute-Provence”, “Ardèche”, “Drôme”and “Vaucluse”) to take into account seasonal and geographic origin variations. The combination of the po- larimetric fingerprints and chemometrics was tested for varietal discrimination. We assessed the ability to discriminate the EOs samples and their variety by partial least squares-discriminant analysis (PLS-DA). This case study showed that liquid chromatography with polarimetric detector in tandem with chemo- metric analysis was efficient to differentiate the varietal origins of French lavender/lavandin EOs.
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Dates et versions

hal-02338664 , version 1 (30-10-2019)
hal-02338664 , version 2 (31-01-2020)

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Citer

Sofia Lafhal, Isabelle Bombarda, Nathalie Dupuy, Marion Jean, Kirstin Ruiz, et al.. Chiroptical fingerprints to characterize lavender and lavandin essential oils. Journal of Chromatography A, 2020, 1610, pp.460568. ⟨10.1016/j.chroma.2019.460568⟩. ⟨hal-02338664v2⟩

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