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Chemical Composition of the Essential Oils of Peucedanum ruthenicum M. Bieb. Leaves, Flowers and Fruits

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The essential oils ofPeucedanum ruthenicum M. Bieb. (Umbelliferae) leaves, flowers and fruits were prepared by hydrodistillation and analyzed by GC and GC-MS and the composition of the three essent ial oils were compared. Thirty-three, thirty-seven and thirty-one compounds were identified in leaves, flowers and fruits essential oils representing 89.13%, 88.66% and 76.45% of total oils respectively. The major components were thymol (18.29%) , l3-bisabulene (13.29%) for leaves oil, l3-myrcene (10.68 %) and germacrene-B (10.06%) for flowers oil and caryophyllene oxide (13.65%), 8, 9-dehydroisolongifolene (11.33%) and 1, 8-cineol (11.15%) for fruits oil. The amounts of monoterpens and sesquiterpenes were found nearly to be equal in oils of the three parts of plant.

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