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Permitted Emulsifying Salt (E331)

Also Known As : Sodium citrates 331, E331, Sodium citrate, Trisodium 2-hydroxypropane-1,2,3-tricarboxylate, Citric acid, Trisodium salt, and 1,2,3-propanetricarboxylic acid


Taste Profile

It has a sour and salty taste.

Usage Tips

  1. Permitted Emulsifying Salt (E331) gives beverages with citrus flavours and club soda, sour and salty flavors.
  2. They improve gel strength in jams and jellies. They also decrease enzymatic browning in fruits and fruit products.

Common names and forms

  1. Acidity Regulator (E-331)
  2. Acidity Regulator 331
  3. Acidity Regulator INS 331
  4. Emulsifier (331)
  5. Emulsifier (INS 331)
  6. Emulsifiers E331
  7. Emulsifying And Stabilizing Agent (INS 331)
  8. Emulsifying Salt (E331)
  9. Salt E331
  10. Sequestering Agent (331)
  11. Sodium Citrate
  12. Sodium Citrate E331
  13. Softening Agent (INS 331)
  14. Stabiliser (INS 331)
  15. Stabiliser E331
  16. Stabilizer E331
  17. Stabilizers (INS 331)


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)

- Disclaimer
"Information here is provided for discussion and educational purposes only. It is not intended as medical advice or product or ingredient review/rating. The information may not apply to you and before you use or take any action, you should contact the manufacturer, seller, medical, dietary, fitness or other professional. If you utilize any information provided here, you do so at your own risk and you waive any right against Culinary Communications Private Limited, its affiliates, officers, directors, employees or representatives.”