Question

Various chemicals are used as food preservatives nowadays. Collect

information about any one and prepare a report. Mention in your report

whether they are safe for you or not.

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Answer 1

Answer:

THE COMMONLY USED CHEMICALS USED IN FOOD PRESEVATIVES ARE:

Benzoates (like sodium benzoate)

Nitrites (like sodium nitrite)

Sulphites (like sulphur dioxide)

EXPLANATION:

Sometimes, the preservatives are added during the process of canning. There is high salt content in canned foods. This is dangerous not to all human beings but still it is harmful for some people.

SOME COMMON METHODS ARE:

FREEZE

USE OF STRONG CONCENTRATION

EXCLUDING AIR

Best method:

Dehydration is an ancient method used for food preservation. In dehydration, the food is exposed to certain temperature so that the moisture can be removed.

Explanation:

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Answer 2

What are common chemical preservatives?

• sorbic acid, sodium sorbate, sorbates: cheese, wine, baked goods, and more.
• benzoic acid, sodium benzoate, benzoates: jams, salad dressing, juices, pickles, carbonated drinks, soy sauce, and more.
• sulfur dioxide, sulfites: fruits, wines, and more.
• nitrites, nitrates: meats.