Nigeria is the world’s leading producer of cocoyam. Cultivars of two species are generally grown for food: Colocasia esculenta (taro, ede) which can be fried, boiled, roasted, grated and steamed or pounded; and Xanthosoma sagittifolium (tannia, ede ofe) is used in thickening soups. Nutritionally superior to cassava and yam, the corms are rich in carbohydrates;…