Essential oil composition of four Teucrium L. taxa from Turkey, their chemotaxonomy and potential usefulness

Abstract

In this study, the essential oil components of aerial parts of four Teucrium (T. chamaedrys L. subsp. tauricolum Rech.f., T. parviflorum Schreb., T. polium L. and T. orientale L. var. orientale) taxa were investigated by GC and GC-MS. Thirty three, thirty two, thirty five and twenty eight components were detected representing 93.08%, 89.10%, 92.20% and 89.14% of the oil, respectively. Germacrene D (20.17%), caryophyllene oxide (17.05%), -pinene (13.45%); -pinene (23.62%), β-caryophyllene (15.90%), -pinene (14.65%); -pinene (20.38%), p-cymene (16.54%), -pinene (16.51%), caryophyllene oxide (5.92%) and germacrene D (19.45%), β-caryophyllene (18.95%), -pinene (12.56%) were determined the main compounds of T. chamaedrys subsp. tauricolum; T. parviflorum; T. polium and T. orientale var. orientale, respectively. The results were discussed in means of chemotaxonomy, natural products and potential usable of these plants.