Document Type : Research Paper
Authors
Research Institute of Forests and Rangelands, P.O. Box 13185 - 116, Tehran, Iran
Abstract
The genus of Pimpinella presents about 20 species, which are found wild in different regions of Iran. Most of them are annual. Two of the more distributed and prenial of these species is P. eurea and P. tragium.
Essential oils were isolated by hydro-distillation from the seeds, flowers, and stems of Pimpinella aurea DC.Individually, that were collected from Fasham (Northwest of Tehran province) and Tochal (North of Tehran province). The yields of seeds, flowers, and stems oils of Fasham sample were 1.97%, 1.54% and 0.44% w/w, and the yields of seeds, flowers, and stems oils of Tochal samples were 1.2%, 0.47% and 0.48% w/w, respectively.
The oils were analyzed by GC (9A-Shimadzu) and GC/MS (Varian 3400). Eight and four constituents at seed oil, thirty-two and thirty-four constituents at flower oil and eighteen and twenty constituents at stem oil of Fasham and Tochal samples were identified respectively.
In the Fasham samples: Major constituents of the stem plus the leaf oil were: 1,8-Cineol and Limonene (21.4%), Viridiflorol (12.8%), a-Pinene (11.5%) and Kessane (10.5%). Major constituents of the flower oil were: Viridiflorol (32.5%) and b-Bisabolene (29.5%). Major constituents of the seed oil were: b-Bisabolene (50.8%) and Viridiflorol (37.0%). In the Tochal samples: Major constituents of the stem plus the leaf oil were: b-Bisabolene (18.3%), Geranyl acetate (14.7%), Geranyl2-methyl butyrate (9.0%) and Limonene (7.3%). Major constituents of the flower oil were: b-Bisabolene (55.2%) and a-zingiberene (8.7%). Major constituents of the seed oil were: b-Bisabolene (76.5%) and Caryophyllene oxide (21.4%).
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