(a) Name the type of chemicalreactionresponsible for causing rancidity and define the term rancidity. (b) Write two methods for preventing rancidity of food.

(a) Name the type of chemicalreactionresponsible for causing rancidity

1.	(a) Name the type of chemicalreactionresponsible for causing rancidity and define the term rancidity. (b) Write two methods for preventing rancidity of food.
Answer» Solution :(a) When fats and oils are oxidised, the food becomes rancid i.e., their smell and taste changes. The type of chemical reaction is a oxidation . Definition : Rancidity is the PROCESS of SLOW oxidation of oil and FAT present in the food materialsresulting in the production of foul odour and taste in them . (b) Methods to prevent Rancidity : (i) Methods to prevent rancidity : (i) Refrigeration of cooking food at low temperatures . (II) Packing of food materials in air tight containers.