Question:
Which one of the following prevents oxidation of oil?
Which one of the following prevents oxidation of oil?
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Propyl gallate is often used synergistically with other synthetic antioxidants like BHA (Butylated Hydroxyanisole) and BHT (Butylated Hydroxytoluene) to provide superior oxidative stability to fats and oils during processing and storage.
Updated On: Aug 20, 2026
- UV light
- Copper
- Propyl gallate
- Moisture
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Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Step 1: Understanding the Concept:
Lipid oxidation is a free-radical chain reaction (initiation, propagation, termination) that causes oxidative rancidity in oils.
Antioxidants are chemical substances added to oils to retard or prevent this oxidation process.
Step 2: Detailed Explanation:
- Propyl Gallate: A synthetic food-grade antioxidant. It acts as a primary antioxidant by donating hydrogen atoms to free radicals, terminating the lipid autoxidation chain reaction before rancidity develops.
- UV Light and Copper (a transition metal): Act as powerful pro-oxidants that accelerate the initiation phase of autoxidation.
- Moisture: Can catalyze hydrolytic rancidity in oils.
Step 3: Final Answer:
The compound that prevents oil oxidation is Propyl gallate, corresponding to option (C).
Lipid oxidation is a free-radical chain reaction (initiation, propagation, termination) that causes oxidative rancidity in oils.
Antioxidants are chemical substances added to oils to retard or prevent this oxidation process.
Step 2: Detailed Explanation:
- Propyl Gallate: A synthetic food-grade antioxidant. It acts as a primary antioxidant by donating hydrogen atoms to free radicals, terminating the lipid autoxidation chain reaction before rancidity develops.
- UV Light and Copper (a transition metal): Act as powerful pro-oxidants that accelerate the initiation phase of autoxidation.
- Moisture: Can catalyze hydrolytic rancidity in oils.
Step 3: Final Answer:
The compound that prevents oil oxidation is Propyl gallate, corresponding to option (C).
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