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प्रश्न
Pickles have a long shelf life and do not get spoiled for months, why?
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उत्तर
Table salt, sugar vegetable oils and sodium benzoate, etc. are used as preservatives. These do not allow moisture and air to enter the material and hence, bacteria cannot thrive on them. Therefore, pickles do not get spoiled for months.
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संबंधित प्रश्न
Write ‘four’ physical methods of preserving food materials
Why do we require artificial sweetening agents?
What are food preservatives?
What are artificial sweetening agents? Give two examples.
What problem arises in using alitame as artificial sweetener?
Write one example each of Artificial sweetener.
Why the use of alitame as an artificial sweetener is not recommended?
Which of the following will not enhance nutritional value of food?
Which of the following are not used as food preservatives?
(i) Table salt
(ii) Sodium hydrogencarbonate
(iii) Cane sugar
(iv) Benzoic acid
What is the difference between saccharin and saccharic acid?
Name an artificial sweetener which is derivative of sucrose.
Sodium salts of some acids are very useful as food preservatives. Suggest a few such acids.
Assertion: All chemicals added to food items are called food preservatives.
Reason: All these chemicals increase the nutritive value of the food.
Assertion: Preservative are added to food items.
Reason: Preservatives inhibit the growth of microorganisms.
Assertion: Artificial sweeteners are added to the food to control the intake of calories.
Reason: Most of the artificial sweeteners are inert and do not metabolise in the body.
Rayon is:
Which synthetic sweetener is 100 times sweeter than cane sugar?
The artificial sweetener that has the highest sweetness value in comparison to cane sugar is ______.
