Patent ID: 11903961
Assignee: AMRITA VISHWA VIDYAPEETHAM
Field: Pharmaceuticals (Chemistry)
Classification: CPC A  C | IPC A  C

Claim 11:
12. A method of preparing the composition as claimed in claim 1, comprising the steps of:
adding 0.01% to 2% of chitosan powder in acetic acid under continuous stirring to form a chitosan solution;
adding sodium hydroxide to the chitosan solution under continuous stirring to adjust the pH to be in the range of 6 to 7;
centrifuging the solution to form a chitosan hydrogel;
mixing 0.01% to 0.25% of potassium aluminum sulphate to chitosan hydrogel under vigorous stirring to form a homogeneous mixture;
adding 0.01% to 0.25% calcium chloride to the homogeneous mixture under vigorous stirring to obtain the homogenous mixture of composite hydrogel.