E622 — Monopotassium Glutamate

Monopotassium glutamate (E622) is the potassium salt of glutamic acid, a naturally occurring amino acid. It appears as a white, odorless crystalline powder and is highly soluble in water. In the food industry, E622 is primarily used as a flavor enhancer, imparting the umami taste to various products. 

Danger Level: 0 — Safe

Purpose in Products

E622 serves several functions in food products:

  • Flavor Enhancer: It enhances the savory taste of foods, reducing the need for added salt.
  • Umami Taste: Monopotassium glutamate imparts the umami taste, considered the fifth basic taste alongside sweet, sour, salty, and bitter. 

Health Considerations

Monopotassium glutamate is considered safe for consumption when used within established limits. The European Food Safety Authority (EFSA) has evaluated its safety and concluded that it poses no health concerns at the current authorized use and use levels. 

Impact on Children

Monopotassium glutamate is safe for children when present in food products at the levels typically used in food processing.

Impact on Taste

E622 enhances the savory flavor of foods without imparting a distinct taste of its own.

Compatibility with Other Additives

Monopotassium glutamate is compatible with various other food additives, including acids and salts.

Natural Occurrence

Glutamic acid, the precursor to monopotassium glutamate, is naturally present in foods such as tomatoes, cheese, and soy sauce.

Alternatives and Substitutes

For those seeking alternatives to E622, options include:

  • Monosodium Glutamate (E621): A sodium-based flavor enhancer.
  • Calcium Glutamate (E623): A calcium-based flavor enhancer.

Regulation

Monopotassium glutamate is approved for use as a food additive in many countries, including the European Union, where it is designated as E622. Regulatory bodies such as the European Food Safety Authority (EFSA) have evaluated its safety and concluded that it poses no health concerns when used within established limits. 

Conclusion

Monopotassium glutamate (E622) is a safe and effective food additive used primarily as a flavor enhancer, imparting the umami taste to various products. Its unique properties make it valuable in food processing, enhancing flavor and reducing the need for added salt. While generally safe, individuals with specific sensitivities should exercise caution.