The flowers of Phlomis fruticosa L., Lamiaceae (1) were collected in Kythnos island, Aegean sea Greece. The essential oil was obtained by hydrodistillation of these flowers and was analysed by GC/MS (HP-5 fused silica capillary column). Thirty seven components were identified representing 85.6% of the oil. The main components were germacrene D (17.8%), g-bisabolene (12.6%), a-pinene (8.9%), b-caryophyllene (8.7%), hexadecanoic acid (3.6%), b-bisabolol (3.5%). The other identified compounds were: a-thujene, b-pinene, limonene, (Z)-b-ocimene, linalool, nonanal, decanal, d-elemene, a-cubebene, a-ylangene, a-copaene, b-bourbonene, b-cubebene, b-elemene, (Z)-b-farnesene, a-humulene, (E)-b-farnesene, a-zingiberene, a-muurolene, cuparene, b-bisabolene, d-cadinene, germacrene B, caryophyllene oxide, epi-cedrol, epi-a-muurolol, a-cadinol, 2-pentadecanone-6,10,14 trimethyl, nonadecane, heneicosane, tricosane. The identification of the components was based on the comparison of retention indices in the HP-5 column and of their mass spectra compared to those of Wiley library and those described by literature (2).

References

1. DeFillips R.A. (1972): Phlomis L. In: Flora Europaea (Edits. Tutin et al.) Vol.3, pp 144-145, Cambridge University Press, Cambridge.
2. Adams R. (1995): Identification of Essential Oil Components by Gas Chromatography and Mass Spectrometry, Allured Publ. Corp., Carol Stream, Il., USA.