Production of protease enzyme from slaughterhouse effluent: An approach to generate value-added products from waste

Abstract

India is one of the largest exporters of meat or meat products in the world. The production of meat or meat products yields enormous amount of wastes which could be utilized to generate valuable products before treatment. This study illustrates the potential uses of slaughterhouse effluent to obtain valuable products. Primarily, the slaughterhouse effluent was demonstrated as microbiological media and further, protease enzyme was produced from slaughterhouse effluent using Chromobacterium violaceum, a bacterium isolated from slaughterhouse environment. The optimization study revealed that 0.1254 Units/ml of protease could be produced by the bacteria at pH 9.0 using slaughterhouse effluent and cabbage leaf waste as media. Thus, this study suggests that the slaughterhouse effluent could be treated following circular economy mode where production of value-added materials could be integrated thereby the country will be benefited economically and also the discharge of wastes will be minimized.