Food grade Chitosan Properties: It is ... textile , dyeing and printing, leather, tobacco, plastics, food additive, fodder, pharmaceutics, color film, paper manufacturing, biological ... etc, or widely used in health food and food additives High pure Chitosan with 95% ... ) Chitosan oligosaccharide (1000-10000). Quality index: Item Food grade Chitosan Appearance light yellow powder Deacetylated Degree % ≥85 ...