Name: Hormones
Uploaded: 2019-07-19
Duration: 2 min 32 s
Description: Hormones are chemical compounds with high biological importance. They are secreted by different glands in the human body. Let's explore this combo of biology...

Question

Write notes on maltose.

Accepted Answer

Maltose has two glucose monosaccharide molecules bound together. The link is α-1- 4 between the first carbon atom of glucose and the fourth carbon of another glucose molecule. On hydrolysis by acid or maltase enzyme, one mole of maltose gives two moles of D-glucose. Maltose has a free hemiacetal hydroxide, hence it undergoes mutarotation. It exists as both α-Maltose and also β-Maltose. It gives a positive test with Benedict’s and Tollen’s reagent.

Chemical Properties of Maltose
Maltose undergoes hydrolysis results in the formation of ethanol and carbon dioxide. The chemical equation is given below.
$C_{12} H_{22} O_{11} + H_{2} O \to 4 C_{2} H_{5} OH + 4 {CO}_{2}$

Maltose reacts with sulphuric acid forms carbon dioxide, water and sulphur dioxide. The chemical equation is given below.

$C_{12} H_{22} O_{11} + 24 H_{2} {SO}_{4} \to 12 {CO}_{2} + 35 H_{2} O + 24 {SO}_{2}$

Uses of Maltose

Used for brewing as their composition is similar to wort. Also in doughs with strong fermenting yeasts as these are able to metabolize maltose quickly.

Used as a carrying material for flavouring materials and volatile aromas. It is also used in infant foods.

The medicinal use of maltose is based on its repair and protection of the liver, for which modern glucose is used.

Write notes on maltose.

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