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प्रश्न
Explain why this happens and suggest possible remedies.
Cut fruits have turned black.
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उत्तर
Fruit contains an enzyme called polyphenol oxidase or tyrosinase that reacts with oxygen. The oxidation reaction basically forms a sort of rust on the surface of fruits so it turns black. Small amount of lemon juice should be applied to the surface of cut fruits as it prevents the oxidation of the fruits.
संबंधित प्रश्न
What precautions do your parents take to keep foodstuffs safe?
Look at the pictures given below. Which one is good for health? Why?
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Give an example of a substance used to protect food grains in the olden days ______.
Why is the oil used as a preservative for pickles?
Write a note on food preservatives.
The addition of oil in pickles prevents the contact of air with the pickle.
What shall we do?
There are vendors selling uncovered sweetmeats in open places in the market.
Give reason.
Food remains safe at 5° Celsius.
Find the odd-man-out.
Find the odd-man-out.
