Science, asked by nehanmohammed204, 1 month ago

give two measures to show the need of preservation of food​

Answers

Answered by fincyrose86
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.

Answered by presentmoment
0

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:

  • Refrigeration protects food by reducing the growth and reproduction of microorganisms as well as the action of enzymes that cause food to decay.
  • Drying is an ancient method of food preservation that decreases water activity to a level that prevents bacterial growth.
  • It's also one of the most common methods for preserving a wide range of foods, including prepared items that wouldn't need to be frozen in their raw state.
  • Osmosis eliminates moisture from the meat during the salting or curing process. Meat is either salted or sugar-cured, or a combination of the two.
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