Volatile composition of the essential oil of Salvia hypoleuca Benth.
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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%). © 2004 Elsevier Ltd. All rights reserved.