Question

Which polysaccharide component of carbohydrates is commonly present in bread?

Answer 1

Saccharides are a group of organic compounds. The general formula of saccharide is ${C_n}{H_{2n}}{O_n}$ . The ratio of hydrogen and oxygen is always $2:1$ . Saccharides are also called carbohydrates. This is biomolecules.

Complete step by step answer:
Based on the number of saccharide molecules attached saccharides are classified into four different types These types are,
Monosaccharides, disaccharides, trisaccharide, and polysaccharides, etc.
In the case of bread, the common polysaccharide is starch. The structure of starch is shown below,

Additional information:
A common example of a polysaccharide is starch. Starch contains two kinds of structures one is amylose and another one is amylopectin. Amylose is a linear polymer of glucose. On the other hand, amylopectin is a cross-linked branched polymer of glucose. There are about 20 to $25\%$ of starch is amylose and 75 to $80\%$ is amylopectin.
Maltose can be prepared by the breakdown of starch by enzymes. Now you should know what an enzyme is. The enzyme is also one kind of protein present in the living body. Enzymes catalyst reaction in a biological system.
Now starch is hydrolysed by the enzyme amylase to the disaccharide maltose. Which is found in the saliva of the mouth. Diastase is an enzyme which is used to catalyze the breakdown of starch into sugar maltose.
In a solution of starch, the dispersed phase is starch and water are the dispersion medium.

Note: Starch is one kind of carbohydrate. These are also called biomolecules. Starch is a poly carbohydrate of glucose. In starch glucose molecules are joined by glycosidic bonds. It is a di carbohydrate of glucose. Glucose is one of the most important carbohydrates having a structural formula. The formula of starch is ${C_{12}}{H_{25}}N{O_{11}}$ .