Periplaneta americana was chosen as stuff to prepare chint and chitosan.Discolor conditions were studied and a suitable method was established by microwave radiation.

• 以蜚蠊壳为原料用微波法制备甲壳素和壳聚糖；用过氧化氢于适当条件下脱色；所得甲壳素为白色片状；脱乙酰度大于75%25；收率14.；7%25;