Chemical Variability of the Essential Oil of Juniperus phoenicea var. turbinata from Algeria

Authors

  • Chahrazed Bekhechi,

    1. Laboratoire des Produits Naturels, Département de Biologie, Université Abou Bekr Belkaid, Tlemcen, Algérie
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  • Fewzia Atik Bekkara,

    1. Laboratoire des Produits Naturels, Département de Biologie, Université Abou Bekr Belkaid, Tlemcen, Algérie
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  • Danaë Consiglio,

    1. Université de Corse-CNRS, UMR CNRS 6134, Equipe Chimie et Biomasse, Route des Sanguinaires, F-20000 Ajaccio (phone: +33-495524122; fax: +33-495524142)
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  • Ange Bighelli,

    1. Université de Corse-CNRS, UMR CNRS 6134, Equipe Chimie et Biomasse, Route des Sanguinaires, F-20000 Ajaccio (phone: +33-495524122; fax: +33-495524142)
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  • Félix Tomi

    Corresponding author
    1. Université de Corse-CNRS, UMR CNRS 6134, Equipe Chimie et Biomasse, Route des Sanguinaires, F-20000 Ajaccio (phone: +33-495524122; fax: +33-495524142)
    • Université de Corse-CNRS, UMR CNRS 6134, Equipe Chimie et Biomasse, Route des Sanguinaires, F-20000 Ajaccio (phone: +33-495524122; fax: +33-495524142)
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Abstract

The chemical composition of 50 samples of leaf oil isolated from Algerian Juniperus phoenicea var. turbinata L. harvested in eight locations (littoral zone and highlands) was investigated by GC-FID (in combination with retention indices), GC/MS, and 13C-NMR analyses. The composition of the J. phoenicea var. turbinata leaf oils was dominated by monoterpenes. Hierarchical cluster and principal component analyses confirmed the chemical variability of the leaf oil of this species. Indeed, three clusters were distinguished on the basis of the α-pinene, α-terpinyl acetate, β-phellandrene, and germacrene D contents. In most oil samples, α-pinene (30.2–76.7%) was the major compound, associated with β-phellandrene (up to 22.5%) and α-terpinyl acetate (up to 13.4%). However, five out of the 50 samples exhibited an atypical composition characterized by the predominance of germacrene D (16.7–22.7%), α-pinene (15.8–20.4%), and α-terpinyl acetate (6.1–22.6%).

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