Chitosan is the N-deacetylated derivative of chitin which is second most available natural polymer after
cellulose. Chitosan is associated with various important biological effects such as anticancer, wound healing,
antimicrobial, antioxidant, as excipients in various formulations including control release drug delivery products
etc. However chitosan as such is poorly soluble in water and other common solvents which may restrict its commercial
application and the problem of solubility may be resolved to some extent by the use of different synthesized
derivatives of chitosan. Further, the vast application of chitosan and its derivatives has fostered the researchers
to find more new and improved derivatives having newer applications in various fields of science.
Keywords: Chitosan, chitin, antioxidant, antimicrobial, preservative.
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