| Abstrakt: |
The combination of 13C nuclear magnetic resonance (NMR) spectroscopy, gas chromatography (GC) (retention index), and gas chromatography-mass spectrometry was used to determine the chemical composition of essential oils of Piper guineenseand Piper umbellatumfrom Côte d’Ivoire. Thus, 54 components, accounting for 91.5% to 97.6%, were identified in the essential oil from aerial parts of P. guineense. In P. umbellatumleaf oil, 49 compounds accounting for 92.8% to 98.7% were identified. Both plants oils were dominated by monoterpenes and sesquiterpenes, with α-phellandrene, (2E,6E)-farnesol, and linalool as major compounds of P. guineense, whereas the most abundant components of P. umbellatumwere linalool and (E)-β-caryophyllene. (2E,6E)-Farnesol, identified for the first time in the essential oil from aerial parts of P. guineense,induced a new chemical composition. |
