Determination of essential oil constituents and antioxidant activities of hybrid species Salvia x karamanensis Celep & B. T. Drew and its parents (Salvia aucheri Benth. subsp. canescens (Boiss. & Heldr.) Celep, Kahraman & Dogan x Salvia heldreichiana Boiss. ex Benth.)

Salvia x karamanensis is endemic to Turkiye and is a hybrid of Salvia aucheri subsp. canescens and Salvia heldreichiana. In this study, the essential oil content and composition of S. x karamanensis hybrid species and its parents S. aucheri subsp. canescens, S. heldreichiana were determined. Essential oils of the plants were obtained by hydro distillation method using Clevenger apparatus for 3 h and the essential oil components were determined by GC -MS. As a result of the distillation, it was determined that S. aucheri subsp. canescens, contains 0.80%, while S. x karamanensis and S. heldreichiana contain 0.64 and 0.48% essential oil, respectively. The major components of the essential oils were borneol, 1,8-cineole, camphor, alpha-pinene, borneol and alpha-terpineol. The DPPH antiradical activity of the samples was determined as 46.70 +/- 0.09, 33.78 +/- 0.68 and 25.93 +/- 0.72 (S. aucheri subsp. canescens, S. x karamanensis and S. heldreichiana), respectively. The highest phenolic content in terms of gallic acid was obtained from S. aucheri subsp. canescens with 15,02 mg/100 ml, followed by S. x karamanensis with 14,43 mg/100 ml and S. heldreichiana with 13,43 mg/100 ml.