Question

Cheese and yogurt are products of .

• A. pasteurisation
• B. fermentation
• C. dehydration
• D. distillation

Answer 1

The correct option is B fermentation

The chemical breakdown of a substance by bacteria, yeast or other microorganisms, typically involving effervescence and the release of heat, is called fermentation. It is through this process that commercial products like yogurt and cheese are processed, involving the action of specific bacteria like LAB (lactic acid bacteria) for the preparation of yogurt, and some fungi in the production of different types of cheeses. For example, Blue cheese is produced by Penicillium roqueforti and Penicillium glaucum.
Distillation is the process of separating the component or substances from a liquid mixture, by selective evaporation and condensation. This distillation process is generally employed for the production of beverages in brewery industries. Pasteurisation is a process of sterilisation through heat treatment or irradiation of products like milk, curd, wine etc. before consumption by the consumers.