The determination of total antioxidant activity, phenolic substance and reducing power amounts of hazelnut (Corylus avellana L.) leaves grown in Giresun

In the present study, total antioxidant activity (TAC), phenolic compound amounts (TPC) and reducing power (RP) of hazelnut leaves collected from Giresun were investigated. Antioxidant levels were determined in the water extracts of hazelnut leaves by using methods according to the appropriate literature. In the results obtained from water extracts at three different doses (1, 2.5 and 5 mg/kg), it was determined that the total antioxidant capacity was high depending on the dose and phenolic content. The high antioxidant capacity of hazelnuts produced in humid regions in our country also depends on the phenolic substance content it has. As can be seen from the results, the phenolic content also increased depending on the dose. In line with all these data, we believe that it can be a precursor to many biological studies.