Due to secondary metabolites, such as thymol and carvacrol, presence in Thymus and Zataria plants, they are widely used in medicine. This study was carried out to evaluate and compare the quantity and quality of the active ingredient of three genotypes of Zataria multif
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Due to secondary metabolites, such as thymol and carvacrol, presence in Thymus and Zataria plants, they are widely used in medicine. This study was carried out to evaluate and compare the quantity and quality of the active ingredient of three genotypes of Zataria multiflora, one genotype of Thymus daenensis and Thymus armeniacus under uniform environmental conditions during 2016 at Shahrekord University. In this regard, at 50% flowering stage, each genotype was harvested from two-year-old plants and at a distance of five centimeters soil surface. The analysis of secondary metabolites was done using Headspace Gas Chromatography/Mass Spectrometry method. The results showed that most of the identified compounds were in the form of monoterpenoid compounds. The mean of thymol and carvacrol in the three genotypes of the species Z. multiflora was higher than the Thymus species. Alpha-pinene and β-pinene materials were observed in three genotypes of Z. multiflora, and alpha-trypinol, linalool and trypinolen in Z. multiflora were comparatively more than two species of Thymus. In contrast, some compounds such as beta-bisabolin, alpha-terpinen and para-cymene, were only presented in Thymus species and were not seen in three genotypes of the Z. multiflora.
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