It is a biodegradable non-toxic
polymer, and over the last several years, chitin and chitosan polymers,
especially the latter, have gathered increasing attention as promising
polymeric materials with interesting applications in the pharmaceutical,
chemical and food industries. Application include enzyme
immobilisation and purification, wastewater treatment, and novel
food ingredient with binding, gelling, thickening and stabilising
properties (Knorr, 1984; Wang, & Chang, 1997).