Methods of Food Preservation
Methods of Food Preservation: Overview
This topic explains concepts such as Preservation of Food by Drying or Dehydration, Preservation Food by Boiling, Preservation of Food by Heat and Cold Treatment, Preservation of Food by Refrigeration, etc.
Important Questions on Methods of Food Preservation
Mushrooms are not preserved by _____. (drying/ canning)
What are the advantages of food drying?
What is the purpose of food dehydration?
At what temperature the food can be preserved in refrigerator?
Name some dehydration methods to preserve the food.
The milk is preserved by
Explain food preservation by freezing method.
Canning is a method of preserving food by lowering the temperature.
Explain the process of food preservation by canning.
Explain the process of food preservation by refrigeration.
Boiling food at high _____ destroys all enzyme activity and almost all microorganisms.
Boiling is the common method of preserving milk in our homes.
Green vegetables, onions and chillies are preserved by _____.
Milk is pasteurized at a temperature of about 50o C.
Microbes like bacteria, fungi, etc. become _____ (active/inactive) at very low temperature.
During pasteurisation method, the cell membrane of the microorganisms in the milk ruptures due to the sudden change in _____ of the milk.
Louis Pasteur invented the process of pasteurisation.
Sodium benzoate is a synthetic preservative.
Fishes are preserved by adding execss sugar.
Canning process ____.
