摘要：The chemical composition of the essential oil of Croton dibowskii Hutch from Congo-Brazzaville was analyzed by GC/FID and GC/SM. The chemical profile remains, for the most part, dominated by the cyperene (15.1%), borneol (12.5%), (6.9)-guaiadiene (8.2%), α-muurolene (7.9%) and 1.8-cineole (6.7%), representing in general 57.4% of sesquiterpene hydrocarbons and 23.8% of oxygenated monoterpne. We note in some respects, with a low content, the presence of monoterpenic hydrocarbons and sesquiterpenic oxygenated compounds of 5.0 and 3.0%, respectively. The antioxidant activity on the DPPH turns out to be very limited, it reaches inhibition percentage of 35% from the concentration of 2000 μg/ml with a CI50 estimated at 3000 μg/ml.
关键词：Antioxidant activity; chemical composition; Croton dybowskii; essential oil.
