CHEMICAL COMPOSITION AND ANTIOXIDANT ACTIVITY OILS FROM OCIMUM GRATISSIMUM L. GROWN IN HA NOI, VIETNAM

Abstract

Ocimum gratissimum L. is an aromatic medicinal plant of Ocimum L. genus (Lamiaceae), which used to treat of various diseases in traditional medicine such as respiratory, digestive, diabetes, cancer,… The essential oil from O. gratissimum  was obtained by the steam distillation with the yields of 0.96% (in absolute dry material) and chemical composition was analyzed by GC/MS-FID. In total, 23 components were identified which presented about 99.99% of the oil. Eugenol is the major constituents of this oil, accounting for 80.38%. The oil is strong antioxidant activity with EC₅₀ of 17.85±1.05µg/ml, while EC₅₀ of 9.97±0.25µg/ml of positive control. O. gratissimum is an herbal source rich in natural eugenol as natural antioxidant compounds, which has the potential to be used to develop essential oils into human health care products and agricultural preservation.