http://dspace.univ-setif.dz:8888/jspui/handle/123456789/374 2026-05-23T18:22:55Z http://dspace.univ-setif.dz:8888/jspui/handle/123456789/375 Titre: Composition chimique et activité antioxydante de l’huile essentielle des fleurs sèches de lavandula officinalis Auteur(s): LAIB, I.; BARKAT, M. Résumé: This study aims to determine the chemical composition and to evaluate the antioxydant activity of the essential oil of the dry flowers of the lavender (Lavandula officinalis). The extraction of essential oils was carried out by hydrodistillation. The composition of essential oil was analyzed by CPG. It made it possible to identify 49 terpenic compounds whose principal ones are: Linalyl acetate (15.26%), Linalool (10.68%), 1.8 - cineole (10.25%), γ-terpinene (11.2%) and camphor (11.25%). The study of the antioxydant power of these oils was carried out by the method of DPPH•. The got results showed the existence of an antioxydant activity of the oil essential of the dry flowers of Lavandula officinalis but less effective by comparison with the vitamin E. 2011-01-01T00:00:00Z