Ancient traditional medicines usually involves the use of plant extracts, often in aqueous solutions, because of their wide therapeutic values [1]. Of the plant-based foods used as medicines, none have received more attention as a group than herbal remedies [2]. Among these plants, mint species havebeen exploited by man since more than two thousand years. Mentha piperita (also known as peppermint) is a perennial herb belonging to the Lamiaceae family and it is a cultivated natural hybrid plant being result of a cross between Spearmint (Mentha spicata) and Watermint (Mentha aquatica) [3]. Peppermint is one of the world's oldest medicinal herbs and it has been used in both eastern and western traditions