Essential oil composition of Stachys obliqua Waldst. et Kit.

Abstract

The genus Stachys L. (Lamiaceae) is represented in Turkey by 83 species and altogether 109 taxa. The rate of endemism in Turkey is 43.4 with 33 species. Stachys. obliqua Waldst et Kit was collected in July, 2015 in Yarımca to Eskişehir. The essential oil from air-dried aerial parts was isolated by hydrodistillation using a Clevenger apparatus. Chemical composition of the oil was investigated using GC- FID and GC/MS techniques. In total, 97 compounds were identified making up 70.1% of the total volatile constituents. Hexadecanoic acid (10.1%), germacrene D (8.2%), hexahydrofarnesyl acetone (4.4%), β-bourbonene (2.1%) were found as main constituents in the oil