title: CHITIN AND CHITOSAN-BIOPOLYMER MATERIALS OF THE 21st CENTURY
abstract: Among natural biopolymers, the greatest attention of researchers and industry leaders is attracted by chitin and chitosanbiopolymeric materials of the 21st century, which is primarily due to the large quantity reserves of these biopolymers (chitin is the second biopolymer in terms of renewability in nature and production after cellulose) and the field of application.Chitin is a nitrogencontaining polysaccharide with a cyclic cellulose structure.It is found in the shells of crustaceans and insect
journal: PPOR