Abstract
The plant Mentha spicata, or peppermint, is member of the Labiatae family, commonly used in the treatment of loss of appetite, common cold, bronchitis, sinusitis, fever, nausea and vomiting, and indigestion as a herbal agent.Although anti-oxidant effects of flavonoid containing plants have been investigated largely, studies in their interactions with enzymatic and nonenzymatic antioxidants and vitamins together with dead mentha powder are rare.The present thesis was carried out to investigate the effects of certain biochemical parameters and Mentha spicata, on antı-oxidant levels.