Question:
Which preservative is typically used at a concentration of 4-5% in commercial vinegar?
Which preservative is typically used at a concentration of 4-5% in commercial vinegar?
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Vinegar = 4--5% Acetic Acid → Preserves food by lowering pH.
Updated On: Mar 17, 2026
- Citric acid
- Acetic acid
- Lactic acid
- Benzoic acid
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The Correct Option is B
Solution and Explanation
Concept:
Vinegar is a widely used food preservative and condiment. Its preservative action is primarily due to the presence of a specific organic acid.
Step 1: Understanding vinegar composition.
Commercial vinegar typically contains about 4--5% acetic acid diluted in water.
Step 2: Role of acetic acid.
Step 3: Comparison with other acids.
Step 4: Conclusion.
Thus, acetic acid is the preservative present at 4--5% concentration in commercial vinegar.
Step 1: Understanding vinegar composition.
Commercial vinegar typically contains about 4--5% acetic acid diluted in water.
Step 2: Role of acetic acid.
- Inhibits growth of spoilage microorganisms
- Lowers pH, creating an unfavorable environment for bacteria
- Enhances flavor and shelf life
Step 3: Comparison with other acids.
- Citric acid: Used in fruits and beverages
- Lactic acid: Produced during fermentation (e.g., curd)
- Benzoic acid: Used as a preservative but not the main component of vinegar
Step 4: Conclusion.
Thus, acetic acid is the preservative present at 4--5% concentration in commercial vinegar.
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