Question

what happens when food materials containing fats and oils are left for a long time? List two observable changes and suggest a way by which this phenomenon can be prevented.​

Answer 1

Answer:

Foods containing fats and oil gets oxidised when left open for a long time. This is called rancidity. The two observable changes are foul smell and taste of the food. This oxidation can be prevented by following ways:

1) addition anti oxidants

2) replacing air by nitrogen

3) refrigeration

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