Question

Define rancidity.What kind of substances are used to prevent
rancidity?Explain any three methods to prevent rancidity.

Answer 1

rancidity is a process of oxidation of foods such as fats and oils due to whoch food gives a foul smell. Substances such as nitrogen are used to prevent rancidity.
three methods are:
1.flushing the food packets with nitrogen gas
2.keeping the food in air tight containers
3. keeping the food into refrigerators

Hope it helps....

Answer 2

The development of unpleasant odors and flavour on oily foods die to oxidation of fats present in them is called Rancidity.

Rancidity can be prevented by natural and chemical method :-
1. By coating them with edible salt (NaCl)
2.By storing them in airtight container.
3. By packaging them with inert/noble gases. ( This process is done specially by major chips brands.)
4. Storing the food in the refrigerator.