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प्रश्न
Give reason for the following.
Raw vegetables and fruits are kept in refrigerators, whereas jams and pickles can be kept outside.
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उत्तर
Raw vegetables and fruits get easily infected by microorganisms and get spoiled. They are kept in refrigerator at low temperature that inhibits growth of microbes. Jams and pickles contain sugar and salt as preservatives.
These preservatives form a protective layer and prevent spoilage of these products by inhibiting the growth of various microorganisms.
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संबंधित प्रश्न
Salt is a ______ type of food preservative.
Earlier people cooked their food in pressure cooker. __________
Give an example of a substance used to protect food grains in the olden days ______.
The gas ______ is filled in airtight packets of potato wafers.
______ is a natural preservative used to increase the shelf life of fruit juices/squash.
Give examples of synthetic food preservatives.
What shall we do?
We have purchased a large quantity of fruits and vegetables.
Give reason.
Food remains safe at 5° Celsius.
Give reason.
Nowadays, food is served buffet style during large gatherings.
Find the odd-man-out.
