ABSTRACT

Colocasia ssp of family: Araceae an annual herbaceous plant with a long history of usage in traditional medicine in several countries across the world, especially in the tropical and subtropical regions including Bangladesh. A field experiment was conducted in Bangladesh Institute of Research and Training on Applied Nutrition (BIRTAN) regional station to evaluated iron rich Colocasia species in Rajshahi region. A wide range of chemical compounds and minerals including Iron have been isolated from Colocasia species. There were twelve verity was collected from Rajshahi region (eight local varieties and four BARI releases varieties). Iron was extracted from leaf, leaf stem, corm and lati.  The study noted that iron (Fe++) was rich (average) in the leaf part and less in corm. Consideration of all parts (average value) the higher iron found in moulovi kachu (1.50 mg/100g) and nearest result were observed in BARI pani kachu-6 and Deshi lati kala kachu (1.34 mg/100g), respectively.

Key words: Colocasia esculenta, chemical constituents, ethno medical uses, pharmacological profile

Introduction

Colocasia, a perennial tropical plant native to Southeast Asia is primarily grown as a vegetable for its edible starchy corn but the versatility of the plant is reflected by the fact that not only the corn but its stem and leaves are also used frequently as seasonal vegetable. Leaves of Colocasia are considered as a rich source of β-carotene, ascorbic acid, folic acid, riboflavin, B vitamins, vitamin A and minerals such as iron, zinc, calcium, potassium, phosphorus, magnesium. Colocasia plants or plant based preparations are also used for the treatment of various ailments in their traditional system of medicine. The family Araceae de Juss. is represented by 3,645 species globally under 144 genera (Boyce and Croat, 2011). In Bangladesh, the family consists of 27 genera and 109 species of which 81 species are wild and 29 are cultivated (Ara, 2016). This would go a long way to improve the role of Colocasia in providing high nutrition quality enriched crops in Bangladesh. For any effective work to be done on Colocasia, it is important to know its characteristics (both qualitative and quantitative) in local germplasm found in Bangladesh. The characteristics of these germplasm will serve as the basis for selection of germplasm that are high yielding and nutritious in Bangladesh. This will help suitable Colocasia as a potential Source of high Iron enriched leafy vegetables.