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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
Drying the food grains from forms under the hot sun is called ______.
Materials like milk are instantly cooled after heating up to a certain high temperature. This method of food preservation is called ______.
Which one can be eaten as raw food?
Vinegar is added as a preservative for pickles.
Name one commercial use of yeast.
Smoking is a method of food preservation used for ______.
______ is a natural preservative used to increase the shelf life of fruit juices/squash.
Why is the oil used as a preservative for pickles?
The addition of oil in pickles prevents the contact of air with the pickle.
Explain why this happens and suggest possible remedies.
The wheat that was bought is a bit moist.
