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Abstract
The water distilled oils from the aerial parts of Ducrosia assadii Alava., endemic in Iran, and Prangos acaulis (DC.) Bornm. were analyzed by GC and GC/MS. Decanal (36.4%) was the main components among the 29 constituents characterized in the oil of D. assadii, representing 88.3% of the total components detected. Twenty-three compounds were identified in the oil of P. acaulis, representing 90.0% of the total oil, with cis-sesquisabinene hydrate (25.6%) and α-pinene (12.5%) as main constituents.
Key Word Index
Ducrosia assadii, Prangos acaulis, Umbelliferae, essential oil composition, decanal, cis-sesquisabinene hydrate, α-pinene.
Introduction
The genus Ducrosia is represnted in Iran by three species: D. assadii Alava., D. flabellifolia Boiss. and D. anethifolia (DC.) Boiss., of which D. assadii and D. flabellifolia are endemic plants (1,2). A few reports on the analysis of the essential oils of Ducrosia species have been published. For example, the oil of Ducrosia ismael was found to contain myrcene, undecane, α-pinene, butylbenzene, δ-cadinene, 3,5-dimethyl styrene, 5-methyl indane, p-menthadiene, cymene, γ-terpine, sabinene, decanol and fenchone as the major constituents (3).
The herb oil of D. anethifolia growing in Iran contained α-pinene, myrcene and limonene as main monoterpene hydrocarbons while decanal, dodecanal, decanol, (E)-2-decenal and cis-chrysanthenyl acetate were the major oxygen-containing constituents. The oil and the main oxygenated containing aliphatic components showed a remarkable antimicrobial activity against Gram-positive bacteria, a yeast and some dermatophytes (4).
Fifteen species of the genus Prangos are found in Iran, among which five are endemic (1,2). Chemical investigation of some Prangos species have shown the presence of coumarins (5,6). The water distilled oil obtained from the aerial parts of P. latiloba has been the subject of our previous studies. The major components were identified to be α-pinene (25.1%), limonene (16.1%) and myrcene (9.5%) (7).
Baser et al. reported that the oils from crushed dry fruits of P. heyniae from two localities in Turkey, contained...