Question

Explain how rancidity can be avoided

Answer 1

METHODS TO PREVENT RANCIDITY-1.to keep away from sunlight2.to keep in refridgerator3.to be flushed with nitrogen gas which prevents further oxidation of food.

Rancidity can be prevented

a) by taking food in air tight containers.b) by putting anti oxidants.c) by taking food in refrigerator.d) keep away food from light.

Answer 2

rancidity can be avoided by :
1)**rancidity can be prevented by adding antioxidants to the foods containing fats and oils **.antioxidant is a substance which prevents oxidation .antioxidants are actually reducing agents .when antioxidants are added to food then the fats and oils present in them do not get oxidised easily and hence do not turn Rancid .so the food remains good to eat for a much time longer .the two common antioxidants used in foods to prevent the development of rancidity BHT and BHA.

2)**rancidity can be prevented by packaging fat and oil containing food in Nitrogen gas .**when the pet food is surrounded by a non reactive gas nitrogen there is no oxygen to cause its oxidation and make it rancid. the manufacturers of potato chips will the plastic bags containing chips with Nitrogen gas to prevent the chips from being oxidized and turn rancid.

3)**rancidity can be prevented by keeping food in refrigerator. **the refrigerator has a low temperature inside it .when the food is kept in the refrigerator the oxidation of fats and oil in it slow down due to low temperature . so the development of rancidity due to oxidation is retarded

4)**rancidity can be retarded by storing food in a tight containers** .when food is stored in airtight containers then there is a little exposure to oxygen of air due to reduced exposure of oxygen the oxidation of fats and oil present in food is slow down and hence the development of rancidity is retarded .

5) **rancidity can be retarded by storing foods away from light** .in the absence of light the oxidation of fats and oil present in food is slow down and hence the development of rancidity is retarded .


hope this helps!!!!!!!