CAS 65-85-0 Benzoic acid is a naturally occurring and widely used organic compound classified as a simple aromatic carboxylic acid. It appears as a white, crystalline solid and has a faint yet pleasant odor. While it is only slightly soluble in cold water, its solubility increases with temperature and is much higher in organic solvents such as alcohol and ether.
Benzoic acid is most commonly recognized for its role as a preservative (E210) in food and beverages, where it helps prevent the growth of mold, yeast, and certain bacteria. It also plays a crucial role in pharmaceuticals, cosmetics, and a variety of industrial applications.
Benzoic Acid Uses in Food
Benzoic acid (E210) and its salts, such as sodium benzoate (E211), are widely used in the food industry to extend shelf life by preventing the growth of microbes and bacteria. It is commonly found in:
- Beverages: Soft drinks, fruit juices.
- Condiments: Pickles and salad dressings.
- Bakery Products: Cakes and pastries.
CAS 65-85-0 Benzoic acid and its salts, especially sodium benzoate, are widely used as preservatives in acidic foods such as soft drinks, fruit juices, pickles, relishes, jams and sauces, as well as some fermented products. The undissociated acid crosses microbial cell membranes and disrupts internal pH homeostasis, thereby slowing or stopping the growth of yeasts, moulds, and many spoilage bacteria. This is why performance improves as the product's pH approaches ~3.
Regulators provide clear guidelines. The U.S. Food and Drug Administration recognises benzoates as safe when used in accordance with good manufacturing practice, and typically limits the amount of benzoate in finished foods to around 0.1%.
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