Fish visceral protease – an alternative source for recovery of silver from waste X ray photographic films

Abstract

Fish processing in India generates enormous amount of solid fish waste and\rcauses various kinds of pollutions. Actually these wastes are used for the production of a\rvariety of value added products such as enzymes mainly protease. Protease enzyme has\rdiverse applications in a wide variety of industries such as detergent, food, pharmaceutical\rand leather industries, peptide synthesis and for the recovery of silver from used X-ray films.\rIn this paper, Labeo rohita fish visceral waste was collected from Mettur Dam, Tamil Nadu. A\rcrude homogenate was prepared and the protease activity was confirmed by zymography.\rAfter that an experiment was carried out with the isolated crude protease to prove its efficiency\rto recover silver from waste X ray photographic films.