Ethnobotany and Research Trends in Trachyspermum ammi L. (Ajowan); A Popular Folklore Remedy

2 Abstract: The present communication is based on a herb namely Trachyspermum ammi L. belonging to family Apiaceae. It is commonly known as "Ajowan" and is cultivated as a spice crop. Ajowan essential oil has an array of various organic and inorganic compounds. The most important of all the components from Ajowan essential oil is thymol which contributes 39.1 % of total volume of essential oil. The important compound Thymol isolated from Ajowan has many pharmacological effects like antiseptic, antioxidant, antitussive, hypertensive activity, expectorant properties, abortifacient, antihelmintic activity and much more. Other Pharmaceutical uses of Ajowan essential oils are to cure cough, digestive disorders, tonsillitis, urticaria and infections with worms. Ajowan essential oil isolated from fruit parts have antiseptic, expectorant and be used against pulmonary disorders. The present review highlights some of major characteristics of important medicinal plant Ajowan and describes the traditional and new novel uses of this plant in our daily life. With these important pharmaceutical effects, Ajowan seeds, fruits and other plant parts can be used for more clinical trials in future.