Which of the following is used as a preservative to preserve processed food?

Correct option is A

​​​Correct Answer:(a) saccharin​

Sodium metabisulphate is a widely used preservative in the food industry. It prevents the growth of microorganisms such as bacteria, fungi, and molds, thereby extending the shelf life of processed foods. It also helps in retaining the color and flavor of the food. Sodium metabisulphate is commonly used in canned fruits, dried fruits, juices, and pickles.

Information Booster:
● Function: Acts as an antimicrobial agent and antioxidant, preserving freshness.
● Uses in Food: Found in dried fruits, jams, soft drinks, and some condiments.
● Chemical Nature: It releases sulfur dioxide (SO₂), which prevents microbial growth.
● Regulation: Its usage is regulated, as excessive consumption can cause allergic reactions in sensitive individuals.
● Alternative Preservatives: Sodium benzoate and potassium sorbate are also commonly used in processed foods.

Additional Knowledge:

• (b) Saccharin: An artificial sweetener, not used as a preservative.
• (c) Diclofenac sodium: A medication used as a pain reliever, not related to food preservation.
• (d) Sodium tripolyphosphate: Used as an emulsifier and texturizer in food, but not primarily as a preservative.