Sodium benzoate is a type of preservative used to extend the shelf life of ready-made foods and beverages.
Benzoic acid itself is a good preservative, and when combined with sodium hydroxide, its solubility in solutions is improved.
Sodium benzoate is not naturally produced,
but the benzoic acid required for its production can be found in plants such as tomatoes, strawberries, apples, plums, and in certain stems like cinnamon. It can also be obtained from cloves.
Additionally, benzoic acid can be produced by certain bacteria during the fermentation process, such as in yogurt production.