Chitosan is a polymer of the subunit called glucosamine and up more than 60% Chitosan can dissolve well in acid such as vinegar acid, lactic acid and other organic acids which, by nature, are not water soluble Chitosan as well with shrimp shell. Crab's shell or bark but Chitosan is soluble when using organic acid as solvent. Aqueous solution of Chitosan to viscosity, but the clear jelly or similar flexible transparent plastic slightly so there is a feature that is ready to be put into different formats easily. Especially if you want to make a thin sheet of tissue or a gel, or a Pellet, flake coatings and fibers, colloids and Chitosan is also biodegradable. So it does not affect living organisms. When ingested, and is not harmful to the environment when going down in the water.