Question

Emulsification of fat molecule is carried out by
A) trypsin
B) pepsin
C) bile salt
D) amylase

Answer 1

Hint: As we know emulsification is the process of formation of emulsions from two immiscible liquid phases, this is considered to be the most versatile property of surface-active agents. This process of dispersing one immiscible liquid in another immiscible liquid is called emulsification. Some common emulsifying agents include detergents and soaps.

Complete answer:
Bile does not contain an enzyme but it consists of salts, such as sodium glycocholate and sodium taurocholate which can reduce the surface tension of large fat droplets and break them into many small ones. This process is called emulsification. The emulsified fat is digested by using the enzyme lipase.
Trypsin is a serine protease which is situated in the digestive system of the vertebrates and hydrolyzes the proteins. Trypsin is formed in the small intestine when the trypsinogen produced by the pancreas is activated. It is used for various biotechnological processes.

Pepsin is an endopeptidase which breaks down the proteins into smaller peptides which is produced in the gastric chief cells of the stomach lining and it helps to digest the proteins in food. Amylase is present in the saliva of humans and other mammals, where it begins the chemical process of digestion, it is an enzyme that catalyses the hydrolysis of starch into sugars. Hence, we conclude that options A, B and D are incorrect.

Therefore, the correct answer is option C which is bile salts.

Note: Emulsification process is carried out in the industries by mechanical mixing of the ingredients of the emulsion in different types of mixers. Bile is made for the liver and is stored in the gallbladder. An emulsifier or an emulgent is a substance that can stabilize an emulsion. Surfactants or surface-active agents such as detergents are one type of emulsifier.