Write the short note on the topic “Food Preservation”
Word limit- 150 words
Class- 8
Answers
Answer:
The process of treating food in order to slow down spoilage is called as food preservation.
a) Chemical method of preservation is done by adding certain chemicals which have the capability of preserving the food. Preservatives include sodium benzoate and sodium metabisulphite used in jams and squashes.
b) Preservation by vinegar is done by adding vinegar as microorganisms cannot live in sour environment provided by the same.
c) Preservation by sugar is done by adding sugar which reduces moisture in food. It also inhibits the growth of microbes that spoil food. Jams, jellies and squashes are preserved using sugar.
d) Preservation by oil is done by adding oil, as bacteria and fungi cannot live in an environment provided by oil.
e) Sun drying is one another method of preserving food. Food like vegetables and fruits are sliced and sundried in order to remove moisture from them. These dehydrated food products can be stored and preserved.
f) Salting is done by using common salt. Sodium chloride used as common salt absorbs moisture from food, making it dry and uninhabitable for microbes.
g) Pasteurization is a method of preserving milk. Louis Pasteur discovered the process of pasteurization. During pasteurization, milk is first heated to about 70 degrees Celsius for 15 to 30 seconds and then suddenly chilled. Sudden chilling of milk is done to prevent the growth of microbes.
h) Boiling and freezing are the two other methods used to preserve food. Deep freezing directly prevents the bacterial growth as many bacteria cannot sustain their life below zero degree Celsius.
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Answer:"FOOD PRESERVATION"Food preservation is what we do when there is food left over on a specific day. This is done to preserve a meal and can still be eaten in later or another days to come.Food preservation is done to preserve a meal. This is to avoid or prevent the growth of some microorganism that can cause rancidity. It also helps keep leftovers safe to eat the next day or in the future. There are three more reasons why food preservation is important it is to minimise pathogenic bacteria, keep food at its best quality or retain its good quality, and most of all to save money. It also helps to increase the family income how?When you do the Food preservation process you will save your money. This means you don't have to spend the next day because your family still has something to eat. Instead of buying food, you can save more, can't you? And most of all you can use the money for more important or other needs. We can say that Food preservation is really important and there are many benefits. Just a few examples prove that Food preservation has much more value.
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