Diversity in tannin and fiber content in Areca nut (Areca catechu) samples of Karnataka, India

Tannins are water soluble Polyphenols, known as proanthocyanidins possessing useful properties such as antioxidant, anti- apoptosis, and anti-aging, anti-carcinogenic, antiinflammatory as well as anti-atherosclerosis and cardiovascular protection. In this study tannin content in various arecanut samples was assessed by titrimetric method. Arecanut samples were collected from Shimoga, Davanagere, Chikkamagalur, Chitradurga, Dakshina kannada (DK) and Udupi districts of Karnataka, India.