Milk Without Lactose: How Is Lactose Removed From Milk?

For people with lactose intolerance, drinking a glass of milk can lead to a nightmare: abdominal pain, vomiting, diarrhea, bloating, or nausea. This happens because they have trouble breaking down lactose, a type of complex sugar found in milk products, as their body lacks a sufficient amount of enzyme that digests lactose: lactase.

To overcome the problem, food manufacturers began to create milk without lactose. The final product of lactose-free milk is usually similar compared to regular milk. Therefore, people with lactose intolerance may enjoy milk as much as they want without worrying about its side effects.  You take lactose-free protein powder as an alternative.

Milk Without Lactose: How Is Lactose Removed From Milk?

Removing Lactose From Milk Processes

There are several ways to create lactose-free milk that are safe for those who can’t include regular milk as their daily diet:

1. Mechanical Separation

The first method is called mechanical separation, which includes membrane fractionation technique and ultrafiltration technique. By using these methods, the sugar in milk is eradicated.

However, the milk product still contains the same nutrients as before. This method is considered as expensive, although it can preserve the natural flavor of the milk.

2. Passing Milk Over Lactase

The second method of making milk without lactose is bypassing the milk over lactase. The lactase will break lactose into a purer form of sugar, glucose, and galactose, which usually can be digested easily.

In this procedure, lactase is bound to a carrier, so the milk product still contains the simple sugars but not the enzyme. Since our taste receptors perceive pure sugar is sweeter than complex sugar, milk products taste sweeter.

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3. Adding Lactase to Milk

Another method that is more common to make lactose-free milk is by simply adding enzyme lactase into milk. This method is not precisely removing lactose from the milk. Still, the additional enzyme will help lactose-intolerant people to break lactose into glucose and galactose.

This method is done by ultrapasteurization of the milk with extra heat during the process. The milk products will have a slightly different taste and have an extended shelf life.

Adding lactase into milk is the easiest method to create lactose-free milk. In fact, this method can be done by most people at home since lactase enzyme supplements are available in a lot of stores and online. And you can find lactose-free powdered milk at the market.

Just add the required amount of liquid or capsule supplements into the milk based on the directions on the label, then wait for about 24 hours to get homemade milk without lactose.

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