The constituents of essential oils of Ferulago angulata (Schlecht.) Boiss at two different habitats, Nevakoh and Shahoo, Zagross Mountain, western Iran

摘要

Abstract – Ferulago angulata (Apiaceae), a medicinal plant of western Asia, contains essential oils that areudused as a food preservative. This study examined and compared the composition of leaf oil with seed oil andudof the oils from two different habitats (one from Nevakov and the other from Shahoo). The oil yield from seedudwas 5-fold that from leaves (3.2%/100g compared to 0.63%/100g). Cis-ocimene was the major constituent ofudthe seed oil from both regions (64.8% and 76.11%) and a prominent constituent (>20% of the total oil) of theudleaf oils of both habitats. α-Pinene was the next main component (7-27%) of all 4 oils. Seed oils, with oneudmajor component (cis-ocimene), differed from the leaf oils, which were composed mostly of 3 componentsud(α-pinene, cis-ocimene, & germacrene D). Distinctions between the oils of the two habitats were less markedudthan the leaf-oil/seed-oil differences; the cis-ocimene content was higher and α-pinene was less in both seedandudleaf-oils of the Shahoo habitats than the Nevakoh ecotype; trans-verbenol was absent from the Shahooudleaves, but reached a content of 5.8% in Nevahoh leaf-oil. Further distinctions were found in theudcontent/presence/absence of 20-30 minor components of the oils.