Leaf essential oils chemical composition,antibacterial and antioxidant activities of eucalyptus camaldulensis and E. rudis from korbous (Tunisia)

The essential oils of the two eucalyptus species (namely: eucalyptus camaldulensis and eucalyptus rudis) were obtained by hydrodistillation,and their analyses were performed by gc and gc/ms. a total of 26 different compounds were identified. spathulenol,1,8-cineole,and ρ-cymene were the main components. the most active antibacterial essential oil is e. camaldulensis. the minimum bactericidal concentrations (mbc) value 0.5% (v/v) is obtained for two oils against staphyloccocus aureus. the antioxidant activity is evaluated by mean of free radical scavenging assay using dpph. ic50=342±2.5 μg/ml for e. camaldulensis is obtained.