Essential oil composition of two Origanum L. Taxa from Bingol (Turkey)

Abstract

In this study aerial parts of the essential oils of Origanum acutidens L. and Origanum vulgare L. subsp. gracile (K. Koch) Ietswaart taxa were analyzed by HS-SPME/GC-MS. As a result forty one and thirty seven components were identifed representing 89.7% and 90.4% of the oil, respectively. Carvacrol (37.5%), thymol (22.7%) and p-cymene (7.6%) were detected as main compounds of O. acutidens; carvacrol (30.8%), thymol (26.8%) and γ-terpinene (12.1%) were detected as the major constituents of O. vulgare subsp. gracile. With this study, chemotypes of studied taxa were identifed as carvacrol and thymol. Additionly, the studied plant samples were found to be rich in essential oils. Te results are discussed in respect to natural products, renewable resources and chemotaxonomy. © 1885 Mattioli.