Modeling the yield of hydrolysis process of leather shavings

Abstract

In this paper the mathematical modeling of collagen hydrolyzate yield from shavings, a leather waste material, is dealt. Besides its function, leather industry is perceived as a consumer of resources and producer of pollutants. The process of alkaline enzymatic hydrolysis offers a reasonable method of processing part of solid waste arising from leather industry with the aim of further utilization of collagenous share. The model is based on the total mass and dry matter balances of technology and its individual components to optimize the hydrolysate yields. The results are visualised in 3D. The experimental laboratory data of alkaline enzymatic hydrolysis are used for comparison with the model and are discussed. © The Authors, published by EDP Sciences, 2017.