Question

Which of the following method(s) helps in food preservation?

• A. Addition of salts or acids
• B. Addition of sugar
• C. Pasteurisation
• D. Storing it in containers

Answer 1

Answer: (A), (B), (C)

Pasteurisation

The addition of salts or acids to pickles and sugars to jams and jellies, reduces the moisture content and makes conditions unsuitable for the growth of microorganisms. Pasteurisation is the process of heating foods such as milk & milk products to high temperatures for a sufficient period of time and then cooling it suddenly to kill microorganisms that are pathogenic or cause spoilage of food.