akbar esmaeili department of chemical engineering, north tehran branch, islamic azad university elham khodadadi faculty of paramedical sciences,shahid beheshti university of medical sciences, tehran
the essential oils from compositae specie of iran: centaurea behen l. obtained by hydrodistillation was analyzed by gc and gc/ms. β-caryooyllane (24.5%), β-selinene (13.9%) and valencene (11.7%) were the main components among the sixteen constituents characterized in the oil of centaurea behen representing 93.7% of the total components detected.
