Question

Which acid is used as a chemical preservative in RTS (Ready-to-Serve) beverages?

• A. Citric acid
• B. Benzoic acid
• C. Acetic acid
• D. Lactic acid

Hint:

Remember: RTS drinks → Benzoic acid (preservative).

Answer 1

The Correct Option is B

Concept: Chemical preservatives are added to food and beverages to inhibit microbial growth and extend shelf life.
Step 1: Understanding RTS beverages.
RTS (Ready-to-Serve) beverages are processed drinks that require preservation to maintain quality during storage.
Step 2: Role of preservatives.
Preservatives prevent spoilage caused by bacteria, yeast, and molds.
Step 3: Identifying the correct acid.
Benzoic acid and its salts (like sodium benzoate) are commonly used preservatives in fruit-based beverages.
Step 4: Evaluating the options.

• Citric acid $\rightarrow$ Used for flavor and acidity, not primary preservative (incorrect)
• Benzoic acid $\rightarrow$ Common preservative in beverages (correct)
• Acetic acid $\rightarrow$ Found in vinegar (incorrect)
• Lactic acid $\rightarrow$ Produced during fermentation (incorrect)

Step 5: Additional insight.
Benzoic acid is effective in acidic conditions, making it suitable for fruit beverages with low pH.
Step 6: Conclusion.
Thus, benzoic acid is used as a chemical preservative in RTS beverages.