Question

Rancidity can be prevented by-
This question has multiple correct options
A.Adding antioxidants
B.Packaging oily food in nitrogen gas
C.Packaging oily food in argon gas
D.Use of spices

Answer 1

We have to know that rancidity denotes the spoilage of food in such a way that it turns undesirable for consumption.

Complete step by step answer:
We have to know that rancidity is a condition in which the substance with oil and fat gets oxidized when they are exposed to air. When there is a change in smell, taste, and colour, the substance is said to be rancid. An example of rancidity is when a chips pack is exposed to atmospheric air there would be a change in taste and odor.
Food becomes rancid when the fats and oils inside them get oxidized. The change in taste and smell of the food is due to this reason. For example, oil turns rancid because of the decomposition of fats. Milk turns rancid because of not heating it in an atmosphere that is humid etc.
The decomposition of oils, fats and lipids is rancidity. Rancid occurs when food items are stored for a long time and are exposed to oxygen.
We can control rancidity by:
Adding antioxidants to food
Storing food stuffs in a closed container
Refrigerating food could also prevent in reducing rancidity
Replacement of oxygen in the containers with some other gas
Vacuum packing
The correct options are (A), (B) and D.

Note:
We have to know that rancidification could lessen from the nutritional value of food, as few of vitamins are sensitive to oxidation. Like rancidification, oxidative degradation takes place in other hydrocarbons, like lubricating oils, fuels, and mechanical cutting fluids. Oxygen scavenging technology could be employed to remove oxygen from food packaging and thereby, preventing oxidative rancidification.