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प्रश्न
How is radiation effective in food preservation?
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उत्तर
- This is a new technique of preservation, which is at the stage of experimentation.
- The W.H.O. has advised the use of this process only in the case of wheat, onions, and potatoes.
- In this process, gamma rays or high-speed electrons are used to destroy micro-organisms.
- These radiations are termed ionising radiations.
- The advantage of using this process is that the food can be stored even without refrigeration.
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संबंधित प्रश्न
Enumerate any five uses of preserving food at home.
Rohan’s dad has made apple jam. Which of the following must have been added to preserve it for a longer time?
Assertion (A): Evaporating moisture from food stuff prevents growth of microorganisms.
Reason (R): Most microorganisms cannot grow without water.
Assertion [A]: Green leafy vegetables kept in the refrigerator go limp and soggy.
Reason [R]: All green leafy vegetables are rich in high content of water.
Identify the picture
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Name the type method of preservation technique by observing the picture
Mention two precautions to be taken while refrigerating food at home.
Name two important cherical preservatives used for food preservation.
Why do fruits and vegetables become limp and soggy after freezing?
What are the changes that take place in food items due to freezing?
Explain the procedure for preserving foods by the use of chemical preservatives.
