Question

Why we have to need of preserving food? Write down the methods, how we can preserve the food? Answer me in shortly.​

Answer 1

Answer:

Food preservation techniques have relied heavily on heat in diverse forms and levels to destroy microorganisms and extend shelf life. The inactivation of the pathogenic and spoilage microorganisms present in foods is the main purpose of food preservation

Answer 2

Food preservation is the process of treating and handling food in order to prevent or slow food decomposition, quality loss, edibility loss, or nutritional value loss, and hence allow for longer food storage.

Explanation:

• Food preservation slows the oxidation of rancid-causing fats and limits the growth of micro-organisms (such as yeasts) or other micro-organisms (however other methods work by introducing benign bacteria or fungi into the food).

• Refrigeration protects food by reducing the growth and reproduction of microorganisms as well as the action of enzymes that cause food to decay.

• Through an osmosis process, the salting or curing procedure eliminates moisture from the meat.

• The chemical approach of food preservation involves adding preservatives.