How Disaccharide Is Made?

A disaccharide (also called a double sugar or biose) is the sugar formed when two monosaccharides are joined by glycosidic linkage. ... The joining of monosaccharides into a double sugar happens by a condensation reaction, which involves the elimination of a water molecule from the functional groups only.

What monosaccharides make up the disaccharides?

Disaccharides consist of two monosaccharide units, linked by glycosidic bonds in the α or β orientation. The most important disaccharides are sucrose, lactose, and maltose. Sucrose consists of a molecule of α-glucose and a molecule of β-fructose linked together (Figure 2A).

What is the main source of disaccharides?

Sucrose is a disaccharide composed of glucose and fructose; the two most important sources are sugarcane and sugar beets. Cane sugar and beet sugar are produced in more than 130 countries globally.