Chemotypes of essential oil of unripe galls ofPistacia atlanticaDesf. from Algeria

Ibrahim Sifia, Nadhir Gourinea*, Emile M. Gaydoub & Mohamed Yousfiaa Laboratoire des Sciences Fondamentales à l'Université Amar TÉLIDJI de Laghouat, Route de Ghardaïa BP37G (03000), Laghouat, Algérieb Laboratoire de Recherche en Systèmes Chimiques Complexes, Faculté des Sciences et Technique de Saint-Jérôme, Université Paul Cézanne, Marseille, France*Corresponding author. Email: n.gourine@mail.lagh-univ.dz, gourine.nadir@gmail.comThe essential oils (EOs) of unripe galls (from male and female plants) of a total number of 52 samples of Pistacia atlantica collected from different regions in Algeria were analysed by GC/MS and GC. The yields of the extraction of the EO by hydrodistillation vary from low to high values (0.08–1.89% v/w). The results of both methods of principal component analysis and hierarchical ascendant classification revealed the presence of two different chemotypes: α-pinene chemotype and α-pinene/sabinene/terpinen-4-ol chemotype.