Composition of the Essential Oils of Cedronella canariensis (L.) Webb et Berth, ssp. canariensis and ssp. anisata f. glabra and f. pubescens

ABSTRACT

The essential oils of Cedronella canariensis (L.) Webb et Berth, ssp. canariensis and ssp. anisata from Tenerife, La Gomera, Madeira and from a location in South Africa were analyzed in detail by GC, GC-EIMS, GC-CIMS, MID, SC and ¹³C-NMR. About 210 (ssp. canariensis) and 257 (ssp. anisata) compounds have been identified or at least partly characterized, with monoterpene ketone pinocarvone (>50%) as the most abundant compound of the oil of ssp. canariensis and methyl chavicol (>80%) as the main constituent of the oil of ssp. anisata. The latter was not identified in the ssp. canariensis. For both subspecies, two morphologically different formae were, f. glabra and f. pubescens.

KEY WORD INDEX:

• Cedronella canariensis
• Lamiaceae
• Labiatae
• essential oil composition
• pinocarvone
• methyl chavicol
• retention indices
• chemotaxonomy