The importance of these hydrolases in biotechnology is growing rapidly, because their potential applications span through chemical and pharmaceutical industries as well as in bioremediation. Immobilized amidase can be used efficiently for production of acrylic acid from acrylamide, thus converting a toxic ambient contaminant into widely used industrial raw material. Amidases are potential treatments for human immunodeficiency virus and malaria. They may be used to eliminate metal ions in wastewater.