... Ash ≤2.0%Applications:Food chitosan made by our company is made from unpolluted Alaska deep-sea crab shell ... food, feed, cosmetic, color film, bioengineering, agriculture, sewage treatment. textile, dyeing, leather, dope, tobacco, plastic. (1). In medicine and healthcare ... , protein recycle and water purification. (4). In light textile field, chitosan can be applied in fabric sorting, healthcare ...