No abstract

The composition of leaf and bark oils of Cinnamosma madagascariensis has been investigated by a combination of GC (RI), GC-MS and 13 C NMR. The leaf oil contained mainly monoterpenes: myrcene (17.9%), limonene (17.8%), β-phellandrene (15.3%) and linalool (12.2%). The bark oil, investigated for the first time, contained β-pinene (49.9%) and α-pinene (19.5%) as major components. Special attention was paid to the identification of cyclocopacamphene, an epimer of cyclosativene. 13 C NMR data of both compounds have been provided.

Melicope belahe (Baill.) T.G. Hartley (Rutaceae) is an endemic species to Madagascar. The chemical composition of leaf essential oil is reported for the first time. A sample was extracted by hydrodistillation and analysis was carried out by combination of chromatographic (GC), spectroscopic and spectrometric (MS, C NMR) techniques. In total, 56 compounds have been identified. The chemical composition was dominated by α-pinene (42.6%) followed by linalool (6.2%) and (E)-β-caryophyllene (5.2%).