Intraspecific Chemical Variability of Essential Oil of <i>Hoslundia</i> <i>opposita</i>

Abstract

Chemical investigation on leaves oil of Hoslundia opposita , aromatic plant used in traditional medicine, harvested from 20 localities of C ? te d’Ivoire was realized by GC and GC/MS. In total, 101 compounds were identified accounting to 92% - 99%, aromatic compounds such benzyl benzoate and sesquiterpenes namely germacrene D, β -caryophyllene and α -humulene hydroxyl were found as the major constituents. As regard, the chemical profiles of our samples, it was found a great chemical variability suggesting a high polymorphism degree. In order to study this chemical variability, the results were submitted to the principal components and cluster analysis which allowed distinguishing two main groups of essential oils with respect to sampling site. The cluster I was dominated by benzyl benzoate (15%) and thy mol (7.4%) comprising 6 localities, cluster II was characterized by phytol (8.5%) and α -humulene (7%) and constituted by 14 localities.