Japanese mint (Mentha arvensis var. piperascens) is an aromatic herb of temperate region. The oil and its principal aroma-compound menthol have cooling and gastro-stimulant properties, for which it is used in pharmaceuticals, food flavour, confectionery, cosmetics, beverages and related industries.Medicinal plants constitute a group of industrially important crops, which are of immense social, economic and commercial value. Plant based drugs are being...