Question

which are the methods of preservation of food​

Answer 1

Answer:

There are five main ways in which food can be preserved...

High temperatures. Canning. Bottling.

Low temperatures. Freezing. Chilling.

Removing moisture. Drying. Accelerated Freeze Drying (AFD)

Use of chemicals. Pickling. Salting.

Controlling the atmosphere. Vacuum packing. Modified atmosphere packaging (MAP)

Hope it helps:)

Explanation:

Answer 2

Explanation:

1)Chemical Meathod : salt and edible oils are the common chemicals generally used to check the growth of microorganism. Therefore they are called preservatives .We add salt or acid preservatives to pickles to prevent the attack of microbes .Sodium benzoate and Sodium metabisulphite are common preservatives.