... snow crab shells, unpolluted and safeCharacter:Off-white, innocuous ... °C. Insoluble in water and organic solvents, but soluble ... acid, acetic acid, and so on.Applications:Chitosan ... active polysaccharide with cationic, and called the Six Element ... Protein, Fat, sugar, mineral and vitamin, can be widely ... agent, fruit and vegetable fresh-keeping agent, juice and fruit wine ... medical materials,etc. Chitosan 2012 ...