Volatile composition of the essential oil of Salvia hypoleuca Benth.

The chemical constituents of the essential oil of Salvia hypoleuca Benth. aerial parts collected from Iran were analyzed by GC and GC/MS. The oil yield of the dried plant obtained by hydrodistillation was 0.3% (v/w). Thirty-nine compounds, accounting for 94.6% of the oil, were identified. The main classes of compounds were found to be sesquiterpenoids [sesquiterpene hydrocarbons (44.9%) and sesquiterpene alcohols (28.2%)] and monoterpene hydrocarbons (15.5%). The major constituents were bicyclogermacrene (15.3%), (E)-β-caryophyllene (14.6%), viridiflorol (13.3%), spathulenol (12.5%), δ-elemene (7.7%), β-pinene (7.2%) and α-pinene (5.9%).