Nita brings some small fish to her house. She would like to preserve them for 6-7 months and taste different species cooked by them. Which method would you suggest her to preserve the fish?
Nita brings some small fish to her house. She would like to preserve them for 6-7 months and taste different species cooked by them. Which method would you suggest her to preserve the fish?
The correct option is D Freeze drying
The correct answer is D (freeze-drying).
Explanation of correct answer:
Freeze drying takes place at a very low temperature around 13-14°F at which chemical reaction takes place very slowly, it is first frozen and then kept in a vacuum chamber. This is the method fish can be preserved for 6-7 months.
Explanation of incorrect options:
Preservation is the method in which by any means the spoilage of food is avoided. It can be done in different ways. Some of the methods are-
Option A:
Irradiation- It is the processing of food with ionizing radiation, by high-energy electrons. It is also called cold pasteurization as no heat is involved.
Option B:
Spray drying is used for liquids. The liquid is sprayed through fine nozzles into the current of hot air. The water evaporates and leaves behind a fine powder. It can be applied to food products such as milk powder, spices, and flavoring.
Option C:
Vacuum drying is the process in which the food is kept in a container with no air. Water pressure inside food is higher than in the outside environment, so the water evaporates faster. For eg- fish.
Final answer: Freeze drying can be used to preserve the fish.
Freeze drying
The correct answer is D (freeze-drying).
Explanation of correct answer:
Freeze drying takes place at a very low temperature around 13-14°F at which chemical reaction takes place very slowly, it is first frozen and then kept in a vacuum chamber. This is the method fish can be preserved for 6-7 months.
Explanation of incorrect options:
Preservation is the method in which by any means the spoilage of food is avoided. It can be done in different ways. Some of the methods are-
Option A:
Irradiation- It is the processing of food with ionizing radiation, by high-energy electrons. It is also called cold pasteurization as no heat is involved.
Option B:
Spray drying is used for liquids. The liquid is sprayed through fine nozzles into the current of hot air. The water evaporates and leaves behind a fine powder. It can be applied to food products such as milk powder, spices, and flavoring.
Option C:
Vacuum drying is the process in which the food is kept in a container with no air. Water pressure inside food is higher than in the outside environment, so the water evaporates faster. For eg- fish.
Final answer: Freeze drying can be used to preserve the fish.
