The Carrier of CASA was prepared by introducing citric acid as strength reagent into the method of cross-linked Ca-alginate to prolong servicetime of immobilized yeast.

• 为了增加同定化酵母的使用时间,本文在交联海藻酸钙包埋法的基础上,引入柠檬酸强化剂,制成柠檬酸强化海藻酸钙固定化酵母。 它的机械强度与海藻酸钙无差?e。