Abstract:
Water caltrop is an aquatic, annual, floating plant that grows in slow water. Water caltrop as known as water chestnuts. Bangladeshi name is paniphol or Singhara.that can be eaten raw or cook. in Bangladesh Several varieties are grown which Trapa bispinosa Roxb and Trapa natans L.two type of water caltrop born in Bangladesh that is red (Leaf, petiole, fruit) and green (Leaf, petiole, fruit). This water caltrop is born in any ware solo water local pond in Bangladesh. The physicochemical properties of water caltrop are they a good source of protein and starch. The proximate composition of water caltrop is ash 1.33, moisture 81.12, and Crude fiber 2.13% starch 8.7%, lipid 0.84%. In 100gm of water caltrop is vitamin-C 1.1 mg .protein 0.275 mg, βCarotene 60 μg. The shelf life of whole water caltrop at ambient, frozen, refrigerated, and aqueous conditions was studied. The water caltrop may play a crucial role in human nutrition.
