甲壳素是自然界中唯一带正电荷的天然高分子聚合物,由于其独特的性能、良好的组织相容性而广泛应用于医药、食品和工业等领域。综述了微生物发酵法和酶法回收甲壳素的的研究进展,并探讨了回收过程中遇到的关键问题。 Chitin is the only natural polymer with a positive charge in nature. Due to its unique properties and good tissue compatibility, chitin is widely used in the fields of medicine, food and industry. The research progress of microbial fermentation and enzymatic recovery of chitin were reviewed, and the key problems encountered in the recovery process were discussed.