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प्रश्न
Explain the term Rancidity.
Explain the following terms with one example.
Rancidity
उत्तर १
The condition produced by the aerial oxidation of the oil and fat present in the food material produces an unpleasant taste and smell. The rancidity is retarded when the food is kept inside the refrigerator since the low temperature does not promote the oxidation reaction.
उत्तर २
Rancidity is the process of oxidation of fats and oils, and a change in taste and smell can easily be noticed. For example, the taste and smell of butter change when kept for a long time.
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संबंधित प्रश्न
Oil and fat containing food items are flushed with nitrogen. Why?
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)?
Explain why, food products containing fats and oils (like potato chips) are packaged in nitrogen.
Name two anti-oxidants which are usually added to fat and oil containing foods to prevent rancidity.
Fill in the following blank with suitable word:
Anti-oxidants are often added to fat containing foods to prevent .............. due to oxidation.
Explain, by giving an example, how oxidation and reduction proceed side by side.
What damage is caused by rancidity?
What type of chemical reaction is responsible for causing rancidity?
State and explain the various methods for preventing or retarding rancidity of food.
The term used to indicate the development of unpleasant smell and taste in fat and oil containing foods due to aerial oxidation is:
(a) acidity
(b) radioactivity
(c) rabidity
(d) rancidity
Write scientific reason.
Always paint grills of doors and windows before using them.
All the methods mentioned below can be used to prevent the food from getting rancid except:
(i) Storing the food in air-tight containers.
(ii) Storing the food in the refrigerator.
(iii) Keeping the food in clean and covered containers.
(iv) Always touching the food with clean hands.
Which of the following gases is used in the storage of fat and oil-containing foods for a long time?
A substance added to food containing fats and oils is called ____________.
