Question:
Lyophilization is achieved for food preservation by which of the following method?
Lyophilization is achieved for food preservation by which of the following method?
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Lyophilization means freeze drying, where water is removed by sublimation.
Updated On: May 19, 2026
- Heat
- Low temperature
- Drying
- Osmotic pressure
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Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Concept:
Lyophilization is also called freeze drying. It is a preservation method in which water is removed from food at low temperature and reduced pressure.
Step 1: Understand lyophilization.
In lyophilization, the food is first frozen and then water is removed by sublimation. \[ \text{Ice} \rightarrow \text{water vapour} \]
Step 2: Identify the basic preservation principle.
The main purpose is to remove moisture from the food material. \[ \text{Moisture removal}=\text{drying} \]
Step 3: Final answer.
Thus, lyophilization is a drying method used for food preservation. \[ \therefore \text{Correct Answer is (C)} \]
Lyophilization is also called freeze drying. It is a preservation method in which water is removed from food at low temperature and reduced pressure.
Step 1: Understand lyophilization.
In lyophilization, the food is first frozen and then water is removed by sublimation. \[ \text{Ice} \rightarrow \text{water vapour} \]
Step 2: Identify the basic preservation principle.
The main purpose is to remove moisture from the food material. \[ \text{Moisture removal}=\text{drying} \]
Step 3: Final answer.
Thus, lyophilization is a drying method used for food preservation. \[ \therefore \text{Correct Answer is (C)} \]
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