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The oil constituents from rhizomes, leaves and seed of Peucedanum petiolare (DC.) Boiss., gathered in Touchal on mountain Alborz (Tehran province) in Iran, have been studied by GC and GC/MS. The major constituents in the rhizome oil were found to be β-bisabolene (31.3%), (E)-sesquilavandulol (20.5%), geranyl acetate (5.7%), citronellyl acetate (5.2%) and sabinene (5.2%). In the leaf oil the main components found were sabinene (42.3%), α-pinene (42.6%) and limonene (2.6%). In the seed α-pinene (47.3%) and sabinene (45.9%) were the predominant constituents. Copyright © 2004 John Wiley & Sons, Ltd.

Hydro-distilled volatile oil from the roots of Plumbago europaea L. was obtained at a yield of 0.2% w/w based on dry weight. The oil was analyzed by a combination of GC and GC-MS. Fifteen components were identified constituting 95.3% of the oil. The major constituents in the root oil were plumbagin (69.1%), 1-octen-3-yl acetate (9%) and limonene (5.7%). Copyright © 2004 John Wiley & Sons, Ltd.

The essential oil was isolated by steam distillation from the aerial parts of Cleome iberica DC. at a yield of 0.1% w[sol ]w, based on dry weight. The oil was analysed by a combination of GC and GC–MS; 26 components were identified, constituting 99.8% of the oil. The main constituents of the essential oil were carotol (21.8%), germacrene D (15.8%), β-cubebene (15.5%), trans-nerolidol (5.6%), δ-cadinene (4.5%) and hexyl acetate (4.0%). Copyright © 2005 John Wiley & Sons, Ltd.