Advertisements
Advertisements
प्रश्न
State and explain the various methods for preventing or retarding rancidity of food.
उत्तर
For preventing or retarding rancidity of food, following methods can be applied:
(1) Use of antioxidants:
Antioxidants are those substances that prevent oxidation.
(2) Use of nitrogen gas:
Nitrogen gas is added during the packaging of the potato chips to prevent oxidation of fat and oil because it is an unreactive gas.
(3) Use of airtight containers:
Preserving food in airtight containers reduces its exposure to oxygen and thus slows down the oxidation process.
(4) Use of refrigerator:
Preserving food in the refrigerator slows down rancidity.
APPEARS IN
संबंधित प्रश्न
Oil and fat containing food items are flushed with nitrogen. Why?
Explain the term Rancidity.
Explain why, food products containing fats and oils (like potato chips) are packaged in nitrogen.
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 type of chemical reaction is responsible for causing rancidity?
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
If edible oil is left aside for a long time, it will get rancid.
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.
