Chemical variability of the wood essential oil of Cedrus atlantica Manetti from Corsica |
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Authors: | Paoli Mathieu Nam Anne-Marie Castola Vincent Casanova Joseph Bighelli Ange |
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Affiliation: | Université de Corse-CNRS, UMR 6134 SPE, Equipe Chimie et Biomasse, Route des Sanguinaires, Ajaccio. |
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Abstract: | The composition of 48 samples of essential oil isolated from the wood of Cedrus atlantica growing in Corsica was investigated by GC (in combination with retention indices), GC/MS, and (13) C-NMR. Twenty-three compounds accounting for 73.9-96.0% of the oil composition were identified. The oils consisted mainly of monoterpene hydrocarbons and sesquiterpenes, in particular α-pinene (5; up to 79.4%), himachalol (4; up to 66.2%), β-pinene (up to 21.4%), β-himachalene (2; up to 19.3%), γ-himachalene (3; up to 11.0%), and α-himachalene (1; up to 10.9%). The 48 oil compositions were submitted to k-means partitioning and principal-component analysis, which allowed the distinction of two groups within the oil samples. The composition of Group I (44% of the samples) was dominated by 5, while the samples of Group II (56% of the samples) contained mainly 4. |
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Keywords: | Cedrus atlantica Essential oils Principal‐component analysis (PCA) α‐Pinene Himachalol |
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