“…Numerous studies in the literature have reported on the composition of volatile oils isolated from hyssop. The major constituents of essential oil extracted from this herb were reported to be pinocamphene, iso-pinocamphene, β-pinene, 1,8-cineole, myrtenol, eugenol, methyl eugenol, limonene, germacrene-D, elemol, linalool and pinocarvone (Steinmetz et al, 1980;Dunian et al, 1990;Dzhumaev et al, 1990;Schulz and Stahl-Biskup, 1991;Tsankova and Kontaktchiev, 1993;Garg et al, 1999;Piccaglia et al, 1999;Gorunovic et al, 1995;Vallejo et al, 1995;Salvatore et al, 1998;Shan, 1991;Kerrola et al, 1994;Mitic and Dordevic, 2000;Jankovsky and Land, 2002;Özer et al, 2005). Studies have shown that the composition of essential oils of a given herb can vary with genotype, location and climatic conditions.…”