Collagen: achievements, innovations and prospects

The article presents data on the protein-bearing wastes, including leather waste, their classification, chemical composition, possible ways of processing and directions of application of collagen obtained from them. The division of tannery wastes into groups depending on the stage at which they are obtained and possible ways of their further utilization are specified. The data of their chemical composition by type of initial raw material, applied technology and processing stage are given. The data on determination of chemical composition of collagen obtained by different methods are presented. Possible ways and prospects of collagen application in various branches: medicine, veterinary medicine, cosmetology, food industry are described. It is pointed out that the use of collagen can significantly improve the properties of the obtained preparations: prolong their action, reduce toxicity, etc., due to its unique molecular structure. The leading role of collagen in tissue engineering as a bioconstructive material is noted. The prospect of using collagen and its hydrolysates in the production of cosmetic products, in particular, various creams, masks, etc., is shown.