Chemical constituents of the essential oils from leaves, flowers, stem and aerial parts of Salvia aethiopis L. from Iran

The essential oils obtained from the dried leaves, flowers, stem and aerial parts of Salvia aethiopis L. (Labiatae) were analyzed using GC and GC/MS. Eighteen components were identified in the oil of leaves with α-copaene (23.8%), β-caryophyllene (23.3%) and germacrene D (18%) as main constituents. Twenty-two compounds were identified in the oil of flowers with β-caryophyllene (24.1%), germacrene D (18.4%) and α-copaene (18.1%) as main components. Eighteen compounds were characterized in the oil of stem with α-copaene (24.9%), β-caryophyllene (20.9%) and germacrene D (17.8%) as main constituents. Twenty-nine compounds were characterized in the oil of aerial parts with β-caryophyllene (23.8%), α-copaene (21%) and germacrene D (18.6%) as main constituents.