乳糖酶，别名：β-半乳糖苷酶，乳糖酶能催化β-D-半乳糖苷和α-L-阿拉伯糖苷水解。其中是催化乳糖水解，产物为半乳糖和葡萄糖，易被肠道吸收，水解后糖液的甜度提高。乳糖的溶解度较低，在冷动物制品中容易析出，使得产品带有颗粒状结构

Lactase, also known as β-Galactosidases, catalyzes the hydrolysis of β-d-galactoside and α-l-arabinoside. Among them is catalytic lactose hydrolysis, the product is galactose and glucose, easy to be absorbed by the intestinal tract, the sweetness of the sugar solution after hydrolysis increased. The solubility of lactose is low, and it is easy to precipitate in the cold animal products, which makes the products with granular structure