Question

22.What are preservatives? Name any two methods of food preservation.​

Answer 1

Answer:

dditives in the food increase the shelf life of food by controlling the growth of the microorganisms. Preservatives are of 2 classes 1) Natural Preservative- Salt, sugar, lemon juice, spice; 2) Chemical preservatives- Organic and inorganic acids

Explanation:

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Answer 2

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Preservative is defined as a substance added to food, capable of retarding the growth of micro-organisms which deteriorate the food within no time.

The preservatives may be natural compounds such as sugar, salts, acids, etc. as well as they may be synthetic i.e., sodium benzoate.

The two methods of food preservation are Freezing and Drying.

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