Question

Q 9. You must have tasted or smelled the fat containing food material left for long time such food tastes or smells bad.What isthe reason for this? Name the phenomenon responsible for it.List two measures for its prevention. [ 3 Marks]

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Answer 1

The reason is rancidity.
It can be controlled by using anti oxidants such as BHA and BHT.

Answer 2

It is because the oil containing food is oxidised by oxygen when it is

left for a long time and forms some products which gives unpleasant smell and bad odour.

The reason for this is RANCIDITY.

PREVENTION MEASURES:

Flushing the food container with nitrogen gas.

Adding antioxidants such as BHA,BTA etc.

HOPE IT HELPS YOU