Question

write the principle of action in the following preservation methods of food
1.cooling or freezing
2.adding salt sugar
3. oil in pickles
4. vinegar in pickles
5. dehydration
please answer all
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no wrong answers ​

Answer 1

Answer:

1. Cooling - Decreasing the temperature to kill microbes. Microbes cannot survive in the cold

2. Salt - Due to salt, the water content in the food is reduced. Microbes need moisture.

3. Oil - Oil prevents the contact of microorganisms and air with food

4. Vinegar - Acids increase the acidity of food, preventing the growth of microorganisms

5. Dehydration - Dehydration takes the water content out of the food. Microbes need moisture.

Answer 2

Answer:

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