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Abstract
The composition of the essential oils of Hypericum salsolifolium Hand.-Mazz. and H. retusum Aucher was analyzed and 60 compounds were determined in total. GC and GC—MS analyses showed α-pinene (34.92%, 35.02% respectively) and limonene (12.38%, 12.34% respectively) as the most abundant components. No major differences were detected in the essential oil composition in both Hypericum species. The essential oil composition of them show some qualitative resemblances, on the contrary with the taxonomical classification based on morphological characters. The results are discussed in view of the distribution of the essential oil components in the Hypericum genus in means of chemotaxonomy and renewable resources.
Résumé
La composition en huiles essentielles de Hypericum salsolifolium Hand.-Mazz. et H. retusum Aucher a été analysée et 60 composés déterminés au total. Les analyses GC et GC—MS montrent les α-pinène (34.92%, 35.02% respectivement) et limonène (12.38%, 12.34% respectivement) comme les composants les plus abondants. Aucune différence majeure entre les deux taxons n'a été observée, cette composition montrant des ressemblances qualitatives, contrairement à ce que donne la taxonomie déduite de la morphologie. Ces résultats sont discutés par rapport à la chimiotaxonomie du genre Hypericum.