Essential oil composition of leaves and flowers of two endemic Phlomis L. species (Phlomis cypria post and Phlomis brevibracteata Turrill) from Northern Cyprus

ABSTRACT

Essential oils of the leaves and flowers of Phlomis cypria and P. brevibracteata were isolated by hydrodistillation and analysed by GC and Gas chromatography - mass spectroscopy (GC-MS), simultaneously. Essential oil yields of the four samples ranged between 0.07% and 0.09% (v/w). The essential oils of leaves (L) and flowers (F) of P. brevibracteata were found to be rich in β-caryophyllene (L: 21.9%, F: 24.2%) and caryophyllene oxide (L: 26.0%, F: 7.2%). Main constituents of the essential oils of P. cypria leaves (L) and flowers (F) were determined as β-caryophyllene (L: 37.4%, F: 20.8%) and germacrene D (L: 47.7%, F: 17.2%).

KEYWORDS:

• Phlomis
• essential oil
• endemic species
• Cyprus

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was supported by the Near East University, Experimental Health Sciences Research Center [SAG-1-2016-043].