Chemical structure of Glycyrrhiza glabra L. and Salvia officinalis L. essential oils collected from Kermanshah Province in west of Iran

Glycyrrhiza glabra L. and Salvia officinalis L. due to their medicinal properties are valuable medicinal plants in Kermanshah province and the other western regions of Iran.

In this research, chemical analysis of the essential oils isolated from these valuable medicinal plants were performed. For this, aerial parts of the plants were gradually dried (shadow conditions at 25 °C), pulverized, their essential oils isolated by hydro-distillation method, and analyzed by GC-MS.

The results showed that there were important compounds in the essential oils of both plants. Total identification times of the compounds were estimated to be 38.469 and 38.230 min, respectively. Among constituents of G. glabra; Naphthalene, Decahydro-4a-Methyl (25.578 min-15.62%); 2, 6-Octadiene-1-ol, 3, 7-Dimethyl (24.702 min-6.96%); Butanoic Acid, 3, 7-Dimethyl-2 (23.587 min-5.79%), Lavandulyl Acetate (18.294 min-4.93%), 3-Hexene-1-ol, Benzoate (23.890 min-3.45%), and among S. officinalis constituents, Alpha-Thujone Bicyclo (8.904 min-24.22%); Bicyclo [2.2.1] Heptan-2-One (9.865 min-15.51%); 1, 8-Cineole 2-Oxabicyclo (7.250 min-10 %); Thujone Bicyclo [3.1.0] Hexan-3 (9.110 min-6.20%), and Veridiflorol (24.330 min-4.47%) were dominant, respectively.

These medicinal plants due to high diverse constituents could seriously be considered in medical, pharmacology, and toxicology researches.