Permitted Emulsifying Salt (E331) is commonly known as Sodium citrate. It is the Sodium salt of Citric Acid and is known as ‘Sour Salt’ because it has a sour and salty taste. It exists as white crystals or powder. Sodium citrate may refer to any one of the sodium salts of citric acid that includes Monosodium citrate, Disodium citrate or Trisodium citrate. These three forms of the salt are collectively known as E331. In the food and beverage industry, it is primarily used as a preservative and a flavoring agent. Its sour taste adds flavor to a wide range of foods and drinks such as club soda, powdered drink mixes, wines, gelatins, jams, carbonated drinks, ice creams, processed cheeses, milk powders, and yogurts. As an emulsifying salt, it is added to most processed cheese foods to prevent them from becoming too greasy when melted. It also acts as a buffering agent to help control the pH of foods, or as a preservative to avoid food spoilage.
Molds that are used in the production of Permitted Emulsifying Salt (E331) can trigger allergies in sensitive people.(1)
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