ESSENTIAL OIL COMPOSITION OF TWO SCUTELLARIA FROM TOKAT PROVINCE OF TURKEY

Abstract

The genus Scutellaria L. (Lamiaceae) is represented in Turkey by 16 species, 1 naturalhybrid, 38 taxa, 16 being endemic in Turkey (1,2). Hydrodistilled essential oils of the aerial parts ofScutellaria altissima L. and Scutellaria orientalis L. subsp. pinnatifida Edmondson were analyzed byGC and GC-MS systems in a simultaneous manner. The oil of S. altissima contained β-caryophyllene(34.7 %), caryophyll-5-en-12-al (14.4%), linalool (14.3%) and hexadecanoic acid (7.1%) as mainconstituents. The oil of S. orientalis L. subsp. pinnatifida was characterized by the occurrence ofgermacrene D (56.9%), β-caryophyllene (10.5%) and bicyclogermacrene (10.1%) as majorcomponents. To the best of our knowledge, this is the first report on the GC and GC/MS determinationof the essential oil composition of the S. altissima and S. orientalis subsp. pinnatifida species studied.