What is food preservation? Name three common chemical food preservatives. [3 MARKS]

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Solution

Definition: 1.5 Marks
Naming: 1.5 Marks

A process to prolong the life of food items by preventing their spoilage by action of microbes is called food preservation.

Common chemical food preservatives are:
1. Benzoates (such as sodium benzoate, benzoic acid)
2. Nitrites (such as sodium nitrite)
3. Sulphites (such as sulphur dioxide)
4. Sorbates (such as sodium sorbate, potassium sorbate.

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What is food preservation? Name three common chemical food preservatives. [3 MARKS]

(a) What is meant by food preservation ? Name any five metods preserving food.

(b) How do you preserve cooked food at home ?

Write answers the following questions.

(a) Name the constituents of food and give five examples of each.

(b) Name some fibrous foods.

(d) What are the various methods of preserving food?

(e) What is meant by pasteurisation?

(f) Give the names of chemical preservatives.

Name any two special chemicals which are used as food preservatives.

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