2009•Journal of Essential Oil Bearing PlantsRequires access

Essential Oil Composition ofVernonia amygdalinaDel. from Southwestern Nigeria

Oluwadayo O. Sonibare, Mubo Adeola Sonibare, Enitan Omobolanle Adesanya

Abstract

Abstract The essential oil composition of Vernonia amygdalina Del. air-dried leaves was analysed by GC and GC-MS. A total of 20 compounds, representing 83.9 % of the total oil were identified. The major constituents of the oil were thymol (27.0 %), (E)-phytol (15.7 %) and ocymene (12.7 %). Other representative compounds were β-selinene (8.1 %), γ-terpinene (4.4 %), β-caryophyllene (3.9 %) and apiole (3.8 %). The essential oil has different composition compared with similar species earlier reported from the eastern part of Nigeria.

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Key concepts: Essential oil, Vernonia amygdalina, Phytol, Composition (language), Thymol, Chemistry, Chemical composition, Botany