Components and chemical variability ofIsolona campanulata Engler & Diels leaf oil

Abstract

Isolona campanulata Engler & Diels from Côte-d'Ivoire produces a sesquiterpene rich-oil. Detailed analysis of a sample of leaf oil by a combination of chromatographic techniques (CC, GC–RI) and 13C-NMR spectroscopy allowed the identification of 73 components. The oil was dominated by eudesm-5-en-11-ol, (E)-β-caryophyllene and α-humulene. Two compositions emerged from the analysis of seven other samples, depending on the contents of the major components: eudesm-5-en-11-ol or (E)-β-caryophyllene/α-humulene. Copyright © 2005 John Wiley & Sons, Ltd.