Which enzyme digests milk protein?

Question: Which enzyme digests milk protein?


  • Lactase is an enzyme which digests milk protein.
  • It plays an important role in the digestion of lactose, a sugar found in milk and dairy products.
  • It is produced in the small intestine.
Enzyme Lactase
Location Produced in the small intestine, specifically in the brush border
Function Breaks down lactose into glucose and galactose
Substrate Lactose
Reaction Hydrolyzes lactose into glucose and galactose
Importance Facilitates the digestion of lactose in milk and dairy products
Lactose Intolerance Insufficient lactase production can cause digestive discomfort
Application Used in the food industry to produce lactose free products
Commercial Availability Lactase supplements and lactase-treated dairy products are widely available

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