... delivery 4.DAC:85%min;Ash:2.0%ma Chitoson industrial gradeAppearance: white to light yellow powder,Fneness:80mesh,DAC:85 ... environment protection field, chitosan can be applied in waste water disposal, protein recycle and water purification. (4). In light textile ... agriculture field, chitosan can be applied in feedstuff additive, seed disposal, soil amelioration and fruit refresh-keeping etc. (6). In ...