Question

Sodium benzoate is used for

• A. Value addition
• B. Preservation
• C. Fortification
• D. Control of diseases

Hint:

Remember the common class II chemical preservatives used in food processing: Sodium benzoate (for acidic foods), Potassium metabisulphite (KMS) (for juices, prevents browning), and Sorbic acid (against yeast and mold).

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
The question asks for the primary function of sodium benzoate in the context of food.

Step 2: Detailed Explanation:
Sodium benzoate is the sodium salt of benzoic acid. It is widely used as a food preservative. It is a class II chemical preservative that works by inhibiting the growth of microorganisms like yeast, mold, and some bacteria. It is most effective in acidic conditions (pH $<$ 4.5), which makes it suitable for preserving acidic foods and beverages such as fruit juices, jams, pickles, and carbonated drinks.
\[\begin{array}{rl} \bullet & \text{Value addition refers to increasing the economic value of a product, which is a broader concept. } \\ \bullet & \text{Fortification is the process of adding micronutrients (vitamins and minerals) to food. } \\ \bullet & \text{Control of diseases usually refers to controlling plant or human diseases, which is not the primary use of sodium benzoate as a food additive. } \\ \end{array}\] Therefore, its specific role is preservation.

Step 3: Final Answer:
Sodium benzoate is used for the preservation of food products.