Explain the term racidity. Write any two methods to prevent ( or retard) the development of rancidity in fat and oil containing foods. Name another damaging effect caused by the same natural process which produces rancidity.

Which term is used to indicate the development of unpleasant smell and taste in fat and oil containing foods due to aerial oxidation (when they are kept exposed for a considerable time) ?

Name the term used to indicate the development of unpleasant smell and taste in fat and oil containing food due to oxidation . What are anti-oxidants ? Why are they added to fat and oil containing food.

What is the general name of the chemicals which are added to fat and oil containing foods to prevent the development of rancidity?

Name two anti-oxidants which are usually added to fat and oil containing foods to prevent rancidity.

(a) Explain the term "rancidity". What damage is caused by rancidity ? (b) What type of chemical reaction is responsible for causing rancidity ? (c ) State and explain the various methods for preventing or retarding rancidity of food.

Define rancidity. To prevent rancidity of food containing oils and fats, some substances are added to them. What are these substances called ? some other methods to prevent rancidity.