Sodium benzoate is an important food preservative that is widely used to prevent spoilage and extend the shelf life of food products. It is a colorless crystal or white crystalline powder at room temperature and is soluble in water, with a slightly sweet and astringent taste. Sodium benzoate is stable in air and does not decompose easily  .

 

In the food industry, sodium benzoate is commonly used in beverages, canned goods, fruit juices, cold dishes, soy sauce, vinegar, and other food products. It is also used as a preservative in beverages  .

 

The primary function of sodium benzoate is to inhibit the growth of microorganisms, such as bacteria and molds, which can cause food to spoil. It achieves this by releasing benzoic acid in an acidic environment, which has antimicrobial properties  .

 

Sodium benzoate is produced industrially by neutralizing benzoic acid with sodium hydroxide or sodium carbonate. After the reaction, the mixture is filtered, concentrated, and dried to obtain the final product  .

 

It is important to note that while sodium benzoate is generally recognized as safe for consumption within regulated limits, it should be used according to established food safety standards to ensure that it does not pose any health risks  .