مرکز منطقه ای اطلاع رساني علوم و فناوري -

چكيده لاتين :

Hydro-distilled essential oils from the aerial parts of Satureja sahendica Bornm. and their antioxidant effects were investigated, mainly by a combination of GC/MS. S. sahendica is one of the endemic species of Satureja in Iran. The plant materials separated to two different parts, l-inflorescence (S1) 2- leaf and stem (S2). Thirty to forty gram of each samples were subjected to hydro-distillation for 4 h using a clevenger-type apparatus to produce oils. Hydro distillation was repeated thrice for each sample and average was calculated. The oils were found to be yellow liquid and were obtained in yields of 1.66 for S1 and 1.5 for S2 based on v/w. Twenty nine compounds were identified in the oil of Sl that Thymol (32.5%), y-Terpinen (29.33%) and P-Cymene (23.48) are main constituents and 23 compounds were characterized in the oil of S2 that main constituents were P-Cymene (44.88%), Thymol (28.22%) and y-Terpinen (10.07%). The antioxidant effect of Sl and S2 compounds were assessed by DPPH assay and RC50 values were and mg mL-}, respectively.