Composition of leaf and stem bark oils of Xylopia villosa Chipp

Abstract

Leaves (16 samples) and stem bark (four samples) of Xylopia villosa were collected in two forests of south-eastern Côte d’Ivoire. The chemical composition of essential oils was investigated by gas chromatography (GC; in combination with retention indices) and ¹³C nuclear magnetic resonance (NMR). Thirty-three compounds accounting for 85.9–95.9% of the oil have been identified. Xylopia villosa produces a monoterpene-rich essential oil, whose composition was dominated by sabinene or (Z)-β-ocimene, one or the other compound being the major component. One atypical leaf oil sample exhibited myrcene as major component.

Keywords:

• Xylopia villosa
• leaf oil
• stem bark oil
• essential oil composition
• ¹³C NMR
• Côte d’Ivoire

Acknowledgements

The authors wish to thank Professor L. Aké Assi for valuable help in the identification of the plant and the Ministère de l’Enseignement Supérieur de Côte d’Ivoire for providing a research grant to T.A.Yapi.