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प्रश्न
Write ‘four’ physical methods of preserving food materials
उत्तर
Food preservatives
-
Chemicals that prevent food from spoilage due to microbial growth
-
Example: Table salt, vegetable oil, sodium benzoate (C6H5COONa), salts of propanoic acid
- Physical methods:
a. By removal of heat
b. By addition of heat
c. By removal of water
d. By irradiation
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