Chemical Composition and Antioxidant Activity of the Seeds Oil of Vitex kwangsiensis C. Pei

The chemical constitution of the seeds essential oil of Vitex kwangsiensis C. Pei and in vitro antioxidant activity have been investigated. The essential oil was isolated by hydrodistillation method then analyzed by GC-MS. Fifty-six compounds were identified, representing 93.10% of the oil. The main components identified were methyl linoleate (11.2%), caryophyllene oxide(10.3%), beta-eudesmol (9.10%) and methyl palmitate (8.1%). The antioxidant activity was tested by DPPH method and it showed weak antioxidant activity. The composition and bioactivity of Vitex kwangsiensis seeds oil are described for the first time.