BIOTECHNOLOGICAL METHOD FOR THE PROCESSING OF MEAT BY-PRODUCTS AND RESULTING PRODUCT

In the biotechnological procedure for the treatment of meat waste of the invention, we part from the raw material of meat waste from agro-food industries and tanning, which, after suffering a pretreatment of degreasing and grinding, undergoes incubation with bacterial strains such as Bacillus subtilis and E.Coli, in aerobic or anaerobic conditions, with stirring, under atmospheric pressure and at a temperature of between 30 and 45ºC. The result is the production and secretion of enzymes such as proteases, elastases, collagenases, keratinases and lipases, which leads to the digestion of the meat waste, transforming them into a liquid consistency hydrolysate composed mainly of aminoacids and peptides. This hydrolysate is then collected for further use as organic amendment for soil and plants treatment acting as biostimulant and biopesticide due to its high concentration in sulfur aminoacids.