... 4.DAC:85%min;Ash:2.0%ma Chitoson industrial gradeAppearance: white to light yellow powder,Fneness:80mesh,DAC ... food, food, feed, cosmetic, color film, bioengineering, agriculture, sewage treatment. textile, dyeing, leather, dope, tobacco, plastic. (1). In medicine ... 3). In environment protection field, chitosan can be applied in waste water disposal, protein recycle and water purification. (4). In ...