State and explain the various methods of preventing or retarding rancidity of food.
(class 10 CBSE SAMPLE PAPER 2017-18 SCIENCE)
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Answered by
94
The various methods of preventing or retarding rancidity of food are as follows.
1.Rancidity can be prevented by storing foods away from light. In the absence of light the oxidation process of fats and oils slows down and thus rancidity is retarded.
2.Rancidity can be prevented by adding antioxidants to foods containing fats and oils. When antioxidants are added to foods then the fats and oils present in them do not get oxidized easily and hence do not turn rancid and the foods remain good to eat for a much longer duration.
3. Rancidity can be prevented by storing food in air tight containers because in airtight containers there is little exposure to oxygen then oxidation of fats and oils present in food is slowed down and thus rancidity is retarded.
4. Rancidity can be prevented by keeping food in a refrigerator because in a refrigerator when the food is kept the oxidation of fats and oils in it is slowed down due to low temperature and thus rancidity is retarded.
5. Rancidity can be prevented by packaging fat and oil containing foods in Nitrogen gas because the packed food is surrounded by a nitrogen gas which is a unreactive gas and there is no oxygen or air to cause its oxidation and make it rancid.
HOPE THIS WILL HELP YOU....
1.Rancidity can be prevented by storing foods away from light. In the absence of light the oxidation process of fats and oils slows down and thus rancidity is retarded.
2.Rancidity can be prevented by adding antioxidants to foods containing fats and oils. When antioxidants are added to foods then the fats and oils present in them do not get oxidized easily and hence do not turn rancid and the foods remain good to eat for a much longer duration.
3. Rancidity can be prevented by storing food in air tight containers because in airtight containers there is little exposure to oxygen then oxidation of fats and oils present in food is slowed down and thus rancidity is retarded.
4. Rancidity can be prevented by keeping food in a refrigerator because in a refrigerator when the food is kept the oxidation of fats and oils in it is slowed down due to low temperature and thus rancidity is retarded.
5. Rancidity can be prevented by packaging fat and oil containing foods in Nitrogen gas because the packed food is surrounded by a nitrogen gas which is a unreactive gas and there is no oxygen or air to cause its oxidation and make it rancid.
HOPE THIS WILL HELP YOU....
Answered by
61
Some ways:
• Using inert gases like nitrogen which is chemically inert.
• Using BHT (butylated hydroxi toluene).
• Using BHA (butylated hydroxi anisole).
• Keeping the food items in cold temperatures.
Feel free to message me if you have any doubts.
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• Using inert gases like nitrogen which is chemically inert.
• Using BHT (butylated hydroxi toluene).
• Using BHA (butylated hydroxi anisole).
• Keeping the food items in cold temperatures.
Feel free to message me if you have any doubts.
Please mark my answer as brainliest.
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