This product is produced by submerged fermentation of a selected microbial strain followed by purification, formulation and drying. Lactase is mainly used in dairy industry to relieve people from lactase deficiency while still enjoying dairy products, but also widely used in food, medicine, environmental protection and other fields.

Lactase, also named β-galactosidase, catalyzes the hydrolysis of lactose into glucose and galactose. The enzyme also exhibits transferase activity under proper condition, transferring galactose to lactose to generate galactooligosaccharide, a growth promoting factor for beneficial bacteria in human. It can be used as a processing aid for dairy product production or digestive aid to alleviate lactose intolerance problem.