摘要：Phytoalexins are low molecular weight antimicrobial compounds whose production is elicited in plants in response to pathogen infection or treatment with various biotic and abiotic elicitors. Resveratrol ( trans- 3,5,4’-trihydroxystilbene) is a phytoalexin which can protect the host plant from fungal infection. Grapevine ( Vitis vinifera) , peanut ( Arachis hypogaea ) and several other plant species can accumulate resveratrol in leaves or in other parts at high concentrations. Resveratrol can be synthesized in different parts of the grapevine at high amounts, especially in the skin of berries which it passes into wine during wine making processes. The amount of resveratrol in pericarp of berries is higher than its flesh. Recently many researches were carried out on favorable impacts of resveratrol on human health due to its anticarcinogenic and antioxidant properties and its inclusion in daily diet is advised. In this study, trans -resveratrol concentrations of wines produced from Cabernet sauvignon and Merlot black grapes which are grown in Ege, Marmara and Trakya regions of Turkey were determined by high performance liquid chromatography and correlation between the results and ecological conditions was researched. It was observed that resveratrol concentrations can changes with grape type and ecological conditions.
