Question:
The effective pH range for benzoic acid used as a chemical preservative in milk and milk products is:
The effective pH range for benzoic acid used as a chemical preservative in milk and milk products is:
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Use benzoic acid in acidic food systems to maximize its preservative effectiveness.
Updated On: Jan 17, 2026
- 2.5–4.0
- \( <5.0\)
- 4.0–5.0
- 2.0–3.0
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The Correct Option is A
Solution and Explanation
Benzoic acid is effective as a preservative in acidic conditions, specifically within the pH range of 2.5–4.0. At this pH, benzoic acid remains predominantly in its undissociated form, which is more effective in inhibiting microbial growth.
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