Maltose

Definition

Maltose is a disaccharide composed of two glucose molecules linked by an α(1→4) bond. It is commonly found in foods like malted grains and is produced during the digestion of starch.

5 Must Know Facts For Your Next Test

1. Maltose is broken down into glucose by the enzyme maltase in the small intestine.
2. It plays a role in carbohydrate digestion and energy supply.
3. Maltose has a glycemic index that can affect blood sugar levels.
4. Enzymatic hydrolysis of starches produces maltose as an intermediate product.
5. Maltose can be found naturally in foods such as sweet potatoes and beer.

Review Questions

• What enzyme breaks down maltose into glucose?
• Which type of bond links the two glucose molecules in maltose?
• Name one natural food source where maltose can be found.

Related terms

Glucose:

A simple sugar that is an important energy source in living organisms and a component of many carbohydrates.

Starch:

A polysaccharide carbohydrate consisting of a large number of glucose units joined by glycosidic bonds.

Sucrose:

A disaccharide composed of glucose and fructose, commonly known as table sugar.