Question

Explain in detail any 3 techniques of food preservation.​

Answer 1

Answer:

Among the oldest methods of preservation are drying, refrigeration, and fermentation. Modern methods include canning, pasteurization, freezing, irradiation, and the addition of chemicals. Advances in packaging materials have played an important role in modern food preservation.Some of the examples of food preservation methods that employ biotechnology include: recombinant antifreeze proteins that extend the shelf life of frozen dairy products and fruits, fermented whey that is high in acids to preserve cheese and rosmarinic acid produced from rosemary plant cell cultures as an oxidant.

Home Food Preservation – 10 Ways to Preserve Food at Home

Minimal Processing – Root Cellars, Cool Storage and Room Temperature Storage.

Drying/Dehydrating.

Canning – Water Bath Canning, Steam Canning and Pressure Canning. ...

Freezing.

Freeze Drying.

Fermentation.

Preserving in Salt and Sugar.

Immersion in alcohol.

Answer 2

• Salting: For preservation of meat, fish and vegetables.

• Pickling: For preservation of fruits and vegetables by vinegar and oil.

Freezing: For preservation of vegetables, meat and eggs.