Composition of the essential oils of thymus pectinatus fisch. Et Mey. Var. Pectinatus at different stages of vegetation

Abstract

Water-distilled essential oils from herbal parts of Thymus pectinatus var. pectinatus, endemic to Turkey, collected at different stages of vegetation were analyzed by GC/MS. Thirty-eight compounds were identified in the oil from material collected at a very young stage representing 99% of the total components; 28 components were identified in the oil from material collected at pre-flowering stage representing 99-8% of the total components detected; and in the oil from flowering material 27 compounds were identified representing 99.3% of the total components. Thymol (47.81%, 61.67% and 52.48%), p-cymene (20.74%, 8.88% and 14.62%) and ?-terpinene (11.11%, 11.26% and 12.13%) were the main components in the oils, respectively