The method of H_2O_2 degration does not influence the degree of de-acetylation of chitosan,the molecular weight of degraded chitosan isbetween 10,000 and 50,000.

• 采用H_2O_2法降解壳聚糖，对壳聚糖的脱乙酰度无影响，且不产生副产物，可以有效地制备粘均分子量为10，000-50，000的壳聚糖。