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Table 4 Physiochemical properties of chitin and chitosan

From: Seafood waste: a source for preparation of commercially employable chitin/chitosan materials

S. no Properties Chitin Chitosan
1 Structure Poly-(2-acetamido-2-deoxy-d-glucose) Poly-(2-amino-2-deoxy-d-glucose)
2 Deacetylation degree (%) < 50 80–95
3 Molecular weight (kDa) 100–1000 20–750
4 Solubility Less soluble More soluble
5 Reactive groups Hydroxyl and carboxyl groups Amino and hydroxyl groups