Lactase Enzyme For Sale (CAS Number: 9031-11-2)


Want to buy Lactase enzymes in bulk? is a wholesale supplier for enzymes at competitive prices. As a manufacturer, we offer a variety of enzyme products.

Lactase Characteristics

  • Another name: β-galactosidase
  • CAS Number: 9031-11-2
  • Appearance: White powder
  • Stability performance: Thermal stability–heat preservation at 60℃ for 30min, the relative enzyme activity is 60.2%. Optimum operation temperature: 50-55℃;
  • pH stability–maintain the relative activity of the enzyme above 90% between pH 4.5-5.5.
  • Optimum pH: 5.0


Hydrolyze the β-galactosidic linkages in lactose molecules to produce glucose and galactose.

Lactase activity


Lactase Enzyme is mainly used in the dairy industry. The low-sweetness and low-solubility lactose can be converted into sweeter, more soluble monosaccharides (glucose and galactose). The possibility of precipitation of lactose crystals in ice cream, condensed milk, and evaporated milk is reduced, and sweetness is increased at the same time.

In the fermentation and baking industry, lactose, which cannot be utilized by general yeast, can be hydrolyzed into glucose.

A certain number of infants have diarrhea after feeding milk due to a lack of normal lactase in the intestines. Therefore, many countries often add lactase to milk for infants to drink.

Food NameAmount of Use(g/kg)Method of Use
Pasteurized milk, sterilized milk, and modified milkAppropriate use according to production needsAdd directly
Milk powder (including sugared milk powder), cream powder and its recombined productsAppropriate use according to production needsAdd directly


  • Activity: 100,000U/g; White Powder
  • Package: Sealed in aluminum foil bag, with a fiber outer drum
  • Net weight: 1kg*20/bucket


The product should be kept in a dry place under 15 ℃ and avoid direct sunlight.
Shelf life: 24 months.

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