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Abstract
The essential oils of the aerial parts of Thymus kotschyanus Boiss. obtained by hydrodistillation (HD) and microwave oven distillation (MD) were analyzed by GC and GC-MS. 39 components were identified in the essential oil of this plant (95.0 % in HD and 94.8 % in MD). The components of the essential oil extracted by MD were similar to those obtained by HD. T. kotschyanus essential oil was characterized by a high amount of carvacrol (64.6 % in HD and 44.7 % in MD). Other major compounds were identified as p-cymene, γ-terpinene and L-Borneol. Thymoquinone was absent in HD method. Although the time of MD was 12 times less than HD, but the percentage of essential oil was only 15 % less (1.2 % in MD and 1.4 % in HD). Moreover, the amount of carvacrol as the main component of the plant essential oil, in MD was 20 % less than HD.
