Question:
The method of food processing for removal of bad odours from food:
The method of food processing for removal of bad odours from food:
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In the oil industry, this is often the final stage of refining (RBD oil), ensuring the oil is neutral in taste and smell before reaching the consumer.
Updated On: Jul 4, 2026
- Flash distillation
- Steam distillation
- Batch distillation
- Gas adsorption
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The Correct Option is B
Solution and Explanation
Concept:
Deodorization is the process of removing unwanted volatile compounds that cause unpleasant smells or flavors.
• Volatile compounds: Usually have lower boiling points than the bulk product.
• Stripping: Using a carrier gas or vapor to "carry away" these volatiles.
Step 1: The role of Steam.
Steam is used as a stripping agent because it is safe and easily separable. Bubbling steam through a hot liquid (like oil) helps the volatile odorous compounds evaporate.
Step 2: Mechanism in Refining.
This process is essentially a form of distillation. Under vacuum, steam distillation allows for the removal of odors at lower temperatures.
Step 3: Conclusion.
Steam distillation is the industry standard for the deodorization of edible oils and fats. Final Answer: (B)
• Volatile compounds: Usually have lower boiling points than the bulk product.
• Stripping: Using a carrier gas or vapor to "carry away" these volatiles.
Step 1: The role of Steam.
Steam is used as a stripping agent because it is safe and easily separable. Bubbling steam through a hot liquid (like oil) helps the volatile odorous compounds evaporate.
Step 2: Mechanism in Refining.
This process is essentially a form of distillation. Under vacuum, steam distillation allows for the removal of odors at lower temperatures.
Step 3: Conclusion.
Steam distillation is the industry standard for the deodorization of edible oils and fats. Final Answer: (B)
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