Study on Resource Utilization of Tannery Meat Residue Solid Waste
The clean treatment and resource utilization of tannery meat residue solid waste is a concern of tannery enterprises at present.In this study,the solid waste of tannery meat residue was prepared into meat residue hydrolysate by biological enzyme method,and the glycerol,fatty acid and protein hydrolysate were separated and analyzed.The results showed that under the action of high temperature and enzyme preparation,56.8 g of fatty acid and 1.6 g of glycerol could be separated from 100 g of meat residue.The remaining protein hydrolysate could be used for the fermentation of Bacillus subtilis AS1.398 by protease secondary hydrolysis.The fermentation enzyme activity of trypsin hydrolysate was the highest,and the fermentation enzyme activity was 4772 U/mL.This opens up a new way for the resource utilization of tannery meat residue solid waste.