甲壳素又名甲壳质、几丁质,广泛存在于虾、蟹等甲壳类动物的外壳中,并因此得名。除此之外,菌类、藻类的细胞中,昆虫的表皮,贝类、软体动物的骨骼内也含有丰富的甲壳素。甲壳素是地球上仅次于植物纤维的第二大生物资源,每年生物合成的达100亿吨以上,可以说是取之不尽。1811年法国科学家布拉克诺首次从蘑菇中提取到甲壳素,一种类似于植物纤维的六碳糖聚合体,把它命名 Chitin, also known as chitin, chitin, is widely found in the shell of crustaceans such as shrimp and crabs, hence its name. In addition, fungi, algae cells, insect epidermis, shellfish, mollusk bones are also rich in chitin. Chitin, the second largest biological resource in the world after the plant fiber, amounts to more than 10 billion tons per year, which can be said to be inexhaustible. In 1811, the French scientist Burakon extracted chitin from mushrooms for the first time, a hexose carbohydrate polymer similar to plant fiber, named it