The volatiles of five Micromeria species endemic to the Canary Islands
Perez-Alonso, M.J. | Velasco-Negueruela, A. | Gil-Pinilla, M. | Perez de Paz, P.L. | Vallejo, C.G. | Esteban, J.L.
The chemical composition of the volatiles from five Micromeria species (section Micromeria) gathered in the Canary Islands is reported. These species were found to contain bornane and pinane types of bicyclic monoterpenes as the most important components of their essential oils. The analysis showed that the Micromeria species studied could be grouped according to the monoterpene skeleton type. M. lachnophylla and M. lasiophylla subsp. palmensis were characterized by larger amounts of bornane type monoterpenes than pinane type monoterpenes. M. lasiophylla subsp. palmensis in addition to those compounds, contained linalool as the other main constituent. The volatile oils of M. varia and M. hyssopifolia were found to contain similar quantities of bornane and pinane type components. M. varia also accumulated large amounts of (E)-nerolidol. Two samples of M. herpyllomorfa were characterized by larger amounts of pinane type monoterpenes than bornane type monoterpenes.
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