Question:
Lyophilisation is a method of
Lyophilisation is a method of
Show Hint
Lyophilisation = Freeze-drying. Ice sublimes directly from solid to vapor phase below the triple point of water ($0.01^\circ\text{C}, 611.65\,\text{Pa}$).
Updated On: Sep 15, 2026
- Juice extraction
- Sterilization
- Fermentation
- Drying
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The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept:
Advanced drying operations remove moisture without exposing sensitive food components to high thermal stress.
Step 2: Detailed Explanation:
Lyophilisation (commonly termed freeze-drying or cryodesiccation) is a dehydration method where food is frozen below its eutectic point, followed by sublimation of solid ice directly into water vapor under deep vacuum ($< 611\,\text{Pa}$).
It produces highly porous, rehydratable, and thermally undamaged dried foods.
Step 3: Final Answer:
Therefore, lyophilisation is a method of drying.
Advanced drying operations remove moisture without exposing sensitive food components to high thermal stress.
Step 2: Detailed Explanation:
Lyophilisation (commonly termed freeze-drying or cryodesiccation) is a dehydration method where food is frozen below its eutectic point, followed by sublimation of solid ice directly into water vapor under deep vacuum ($< 611\,\text{Pa}$).
It produces highly porous, rehydratable, and thermally undamaged dried foods.
Step 3: Final Answer:
Therefore, lyophilisation is a method of drying.
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