Volatile constituents of Phlomis Olivieri Benth

Abstract

The chemical composition of the essential oil of Phlomis olivieri Benth growing wild in Iran was examined by GC/MS. The oil contains over thirty-nine components. The major components are hexahydrofarnesyl acetone (13.3%), spathulenol (11.4%), germacrene-D (9.7%), β-caryophylene (6.9%) and caryophyllene oxide (5.3%). As a result of this investigation the oil of Ph.olivieri is characterized by a high content of sesquiterpenes and only trace amounts of monoterpenes.