INTRODUCTION
Chitosan is a natural cationic biopolymer consequent commencing the hydrolysis of chitin. One perceptible
improvement of this substance is that it can be obtained from ecologically sound natural sources, namely crab
and shrimp shell wastes. Together with chitin, Chitosan is well thought-out the second most profuse
polysaccharide subsequent to cellulose. However contrasting cellulose, the employ of Chitosan as an excipient
in pharmaceutical formula is a pretty new development. But Chitosan has been widely premeditated in the
biomedical field and has been found to be highly biocompatible. In addition to the good biocompatibility of
Chitosan and the abundance of natural sources of the material, Chitosan has a number of enviable properties
that put together study of it attention-grabbing. (Janet cuy, et.al., 2004).