Chemical compounds of oak (Quercus petraea (Matt.) Liebl.) species with different medicinal properties in eastern Black Sea region

Oak (Quercus petraea (Matt.) Liebl.) has many medicinal values. It was observed that many researchers have reported about anti-inflammatory, wound healing, anthelmintic, antibacterial and antioxidant effects of this plant. In our study, the quantities of chemical composition of heartwood, sapwood and bark of Strendzha oak (Quercus hartwissiana), Sessile oak (Quercus petraea) and eastern Black Sea oak (Quercus pontica) have been determined by means of standard methods. Additionally, chemical components of the heartwood, sapwood and bark of Strendzha oak (Q. hartwissiana) were analyzed by GC-MS. As a result of GC-MS analyses, the compounds identified in heartwood with higher ratio were octacosane (5.50\%), heptacosane (4.44\%) and hexacosane (2.76\%) while those in sapwood were found octacosane (7.09\%), triacontane (6.50\%) and heptacosane (4.72\%). In addition to this, vitamin E (5.38\%), stigsmastan-3,5-dien (2.53\%) and campestrol (1.85\%) were found in higher ratio in the bark of Strendzha oak