Study of Essential Oils Compositions of Three Species of Medicinal Plants from ShirKooh Mountain (Up village) on Yazd Province

In order to investigate the medicinal species from montain of ShirKooh (Up village), in Yazd provience, Iran on three species by scientific names were Heracleum persicum Desf. ex Fisch., C.A.Mey. & Avé-Lall.; Ziziphora clinopodioides Lam. and Nepeta asterotricha Rech.f. were collected on June, July and August 2011. Then all samples essential oils were extracted by hydro-distillation method (clavenger types). Then were analyzed by GC and GC/MS. The essential oil yield was H. persicum (2.5%); Z. clinopodioides (1.5%) and N. asterotricha (1.8%), respectively. Major component identificated in H. persicum were; trans-carveol 38.7%, α-terpineol 23.8% and isobornyl formate 9.2%, Z. clinopodioides were carvacrol 52.7%, linalool 15.9% and menthol 14% and N. asterotricha were terpinolene 21.2% , n-dodecanol 18.6% and  n-undecane 12%,  respectively.  In H. persicum with trans-carveol (38.7%), which can use as stimulates central nervous system, allergenic, and in Z. clinopodioides with major compound carvacrol (52.7%), which can use as a Anesthetic, kills and expels worms, may help prevent alzheimer's disease, antiinflammatory, antioxidant, antiplaque, antiseptic, bactericide, relieves flatulence, relaxes intestines, expectorant, prostaglandin-inhibitor, relaxes trachea. Can cause spasms, and also in N. asterotricha with major compound of terpinolene (21.2%), which can use as a Deodorant.