Extraction, Composition, Propriétés Anti Oxydantes Et L’activité Biologique De L’huile Essentielle De Ruta Graviolens L , Brocchia Cinerea Collectée Dans Les Régions Saharienne

Résumé: Extraction, composition, antioxidant properties and biological activity of the essential oil of Ruta graviolens L, Brocchia cinerea collected in the Saharan regions The chemical compounds of the basic volatile oil from the aerial parts of Ruta G and Brocchia.C Were extracted by water distillation with a yield of 0.85% and 0.73%, respectively. They were analyzed by gas chromatography associated with mass spectrometry (GC / MS). A total of 25 compounds were identified, representing 91.99% of the total components of Ruta G oil. Its predominant components were: Nonanone<2-> ( %), Undecanone<2-> ( %), 2-Heptanol acetate ( %) , Camphor ( %), Acetylacetophenone (.....%). These represented 95.04% of the total components of Brocchia.C volatile oil. Its predominant components were: β-Thujone (32.01%), Isobornyl acetate (16%), Cineole< 1,8> % , Santalina triene (9.35%) , Camphor (0..5%), Terpinen-4-ol (5..2%), p-cymene (5.5.%) . After that, the antioxidant properties of the essential oil were examined . the antioxidant activity was investigated with one method : 2,2-diphenyl-1- picrylhydrazyl (DPPH) radical scavenging method. It was found that the essential oil of Ruta G and Brocchia.C had a low antioxidant activity when compared with commercial antioxidants such as vitamin E. On the other hand, the biological efficiency of both volatile oils was assessed by testing strains using the lowest inhibitory concentration (CMI) ).

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