Chitosan, a natural polymer, is a partially deacetylated polymer of acetyl glucosamine obtained from the alkaline deacetylation of the chitin.

• 壳聚糖是一种天然高分子，是一种聚合物部分脱乙酰乙酰氨基葡萄糖从碱性的脱乙酰甲壳素。