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प्रश्न
How do sugar and salt contribute to the preservation of food?
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उत्तर
Sugar and salt aid in food preservation in the following ways:
- Sugar and salt help to preserve food by inhibiting the growth of microbes. These natural preservatives absorb excess moisture from food. Salt is a hygroscopic substance that kills bacteria and fungi in food.
- The addition of sugar reduces the availability of water for microbial development.
- Sugar and salt extend the shelf life of food.
- Sugar functions as a preservative by facilitating the osmosis process.
- Salt is naturally hypotonic and kills bacteria.
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संबंधित प्रश्न
Choose the correct pair:
| A. Sun drying | 1. Potatoes, Onions, Yams |
| B. Convenience | 2. Rasin, chips, papad |
| C. Semi-perishable | 3. Meat, fish, chicken |
| D. Perishable | 4. Peas, Jam, Jellies |
Enumerate any five uses of preserving food at home.
Rohan’s dad has made apple jam. Which of the following must have been added to preserve it for a longer time?
Tom watched his uncle preparing mango pickle. He noticed that he had put a lot of salt and spices into the vessel while cooking it. State any five ways in which these ingredients play a role in the preparation of the pickle.
State True or False:
Sugar acts as a preservative by enabling the process of osmosis.
Select the odd one.
Oil is a natural preservative because
- Delay moulding
- Increase oxidation
- Delay deterioration
- Isolates food from air
Name two important cherical preservatives used for food preservation.
Describe the method of preserving foods by canning.
What is the need for preserving food items?
Explain the procedure for preserving foods by the use of chemical preservatives.
