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Sodium benzoate also known as benzoate of soda is the sodium salt of benzoic acid, widely used as a food preservative (with an E number of E211) and a pickling agent. It appears as a white crystalline chemical with the formula C 6 H 5 COONa.
Sodium adipate – food acid; Sodium alginate – thickener, vegetable gum, stabilizer, gelling agent, emulsifier; Sodium aluminium phosphate – acidity regulator, emulsifier; Sodium aluminosilicate (sodium aluminium silicate) – anti-caking agent; Sodium ascorbate – antioxidant (water-soluble) Sodium benzoate – preservative
The fact that an additive has an E number implies that its use was at one time permitted in products for sale in the European Single Market; some of these additives are no longer allowed today. Having a single unified list for food additives was first agreed upon in 1962 with food colouring. In 1964, the directives for preservatives were added ...
The efficacy of benzoic acid and benzoate is thus dependent on the pH of the food. [24] Benzoic acid, benzoates and their derivatives are used as preservatives for acidic foods and beverages such as citrus fruit juices (citric acid), sparkling drinks (carbon dioxide), soft drinks (phosphoric acid), pickles and other acidified foods.
As of August 2012, Coca-Cola Zero and Barq's root beer still contained benzoate (added as potassium salt and sodium salt respectively). [ 30 ] A Belgian study found that plastic packaging may play an important role in the formation of benzene in soft drinks.
A preservative is a substance or a chemical that is added to products such as food products, beverages, pharmaceutical drugs, paints, biological samples, cosmetics, wood, and many other products to prevent decomposition by microbial growth or by undesirable chemical changes. In general, preservation is implemented in two modes, chemical and ...
Dairy products, for example, milk, custard and dairy based desserts; Seafood (excluding live seafood); Processed fruits and vegetables, for example, salads; Cooked rice and pasta; Foods containing eggs, beans, nuts or other protein rich foods, such as quiche and soy products; Foods that contain these foods, such as sandwiches and rolls.
The chemical structure of the conventional Neuberg's hydrotropic salts (proto-type, sodium benzoate) consists generally of two essential parts, an anionic group and a hydrophobic aromatic ring or ring system. The anionic group is involved in bringing about high aqueous solubility, which is a prerequisite for a hydrotropic substance.