Composition of the Volatile Oils of the Aerial Parts of Pedicularis sibthorpii and P. wilhelmsiana Growing in Iran

Abstract

The aerial parts of Pedicularis sibthorpii and P. wilhelmsiana were collected from the East Azerbaijan province, Iran, and their volatile oils were analyzed by GC-FID and GC-MS. While 19 components, representing 89.8 % of the total oil, were identified from the volatile oil of P. sibthorpii, the identity of 36 components, constituting 81.5 % of the total oil, was confirmed from that of P. wilhelmsiana. 1-Octen-3-ol (55.2 %), linalool (5.5 %), E-2-hexenal (4.4 %), Z-3-hexenol (4.4 %) and 3-octanol (2.7 %) were found to be the major components of the volatile oil of P. sibthorpii. The volatile oil of P. wilhelmsiana mainly contained docosane (29.2 %), hexacosane (4.9 %), carvacrol (4.6 %), 1-octen-3-ol (4.5 %) and heptacosane (4.3 %).