Jack beans may be used as a "crude urease." Jack beans (Canavalia ensiformis) is a potential source of protein and local feed ingredient. It contains essential amino acids. Jack bean is also rich in phenol, isoflavones, niacin, saponins, and fibre and possesses hypocholesterolemic properties.

Application

Jack bean meal is much less expensive and is more stable in the presence of soluble salts than is refined urease powder. Percent recoveries in terms of protein equivalent for 3 types of feed ranged from 96.1 to 98.9, using the proposed method.