Food Preservation
Trending Questions
Why does curd set and turn sour faster in summer than in winter
(a) What is meant by food preservation ? Name any five metods preserving food.
(b) How do you preserve cooked food at home ?
List the conditions that are required to maximize the yield of ammonia?
What will happen to ‘pooris’ and ‘unused kneaded flour’ if they are left in the open for a day or two?
Is nitrogen a mineral nutrient for plant growth?
Name two food materials which are usually preserved by deep freezing.
Give the clipped words for a) laboratory b) cafeteria
- sodium benzoate
- salt
- sodium hydroxide
Paheli watched her grandmother making mango pickle. After she bottled the pickle, her grand mother poured oil on top of the pickle before closing the lid. Paheli wanted to know why oil was poured? Can you help her understand why?
Name two food materials which are preserved by sun- drying method in our homes.
Paheli watched her grandmother making mango pickle. After she bottled the pickle, her grandmother poured oil on top of the pickle before closing the lid. Paheli wanted to know why oil was poured? Can you help her understand why?
- True
- False
Name two food materials which can be preserved by using sugar.
Sodium benzoate is an example of _______.
- To enhance growth of bacteria.
- To prevent bacterial growth.
- To preserve them from spoilage.
- To increase nutritional value.
Name two food materials which can be preserved by using oil or vinegar.
Name some of the preservatives which are used i the preservation of fruits and vegetables as pickles.
- Acidification
- Pickling
- Refrigeration
Rama and Mrunalini went to Antarctica for a trip. They were surprised that their food never got spoiled even after 24 hours. However, when they were staying in Delhi, they had to store food in refrigerator as the food was getting spoiled even after 8 hours of storage at room temperature. What could be the possible reason for this?
- Extreme low temperatures of Antarctica inhibits microbial growth.
- The salt-rich air in Antarctica is toxic to microbes.
- The air in Antarctica has antimicrobial properties.
- There are no microorganisms persent in Antarctica.
Explain the preparation of ammonia using hydrogen.
- Pasteurisation
- Refrigeration
- Boiling
- Salting
Column AColumn B(A) Meat and fish(1) Sugar solution(B) Pickle(2) Dry salt(C) Squashes(3) Drying(D) Chilli(4) Oil and vinegar
Name two fruits which are preserved :
(a) in the form of pickles .
(b) in the form of jams.
- Nitrification
- Pasteur's
- Haber's
- Sun-drying
- Salting using dry salt
- Nitrogenation
- Canning
- Sodium metabisulphite
- Sodium cyanide
- Sodium benzoate
- Sodium oxalate
- Moisturisation
- Dehydration
- Mummification
Which of these are used as food preservatives?
Sodium chloride
Sodium metabisulphite
Sodium benzoate
Sodium lauryl sulphate