E633 — Calcium Inosinate

Calcium inosinate, designated as E633, is a calcium salt of inosinic acid, a natural compound predominantly found in animal tissues. It is primarily used in the food industry as a flavour enhancer. 

Danger Level: 0 — Safe

Purpose in Products

Calcium inosinate serves several functions in food products:

  • Flavour Enhancer: It enhances the overall taste of food, particularly in savoury products, by intensifying the natural flavours present. 

Health Considerations

Calcium inosinate is generally considered safe for consumption. However, individuals with asthma should avoid inosinates, as they may trigger asthmatic reactions. Additionally, since inosinates are metabolised into purines, individuals suffering from gout should exercise caution. The concentrations used in food products are typically low, reducing the likelihood of adverse effects. 

Impact on Children

Calcium inosinate is safe for children when consumed in typical dietary amounts. Nonetheless, excessive intake should be avoided to prevent potential digestive issues.

Impact on Taste

Calcium inosinate is tasteless and odourless, making it an ideal ingredient for various food products without altering their flavour profiles.

Compatibility with Other Additives

Calcium inosinate is compatible with various other food additives, including sugars and other hydrocolloids. Its water-binding properties make it suitable for use in products requiring moisture retention.

Natural Occurrence

Calcium inosinate is naturally found in animal tissues, particularly in meat and fish. It is commercially produced from meat or fish, such as sardines, and may also be synthesised through bacterial fermentation of sugars. 

Alternatives and Substitutes

For those seeking alternatives to calcium inosinate, options include:

  • Monosodium Glutamate (MSG): A widely used flavour enhancer that provides a savoury taste.
  • Disodium Guanylate (E627): Another flavour enhancer often used in conjunction with other additives to enhance taste.

Regulation

Calcium inosinate is approved for use as a food additive in many countries, including the European Union, where it is designated as E633. 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

Calcium inosinate (E633) is a versatile and natural food additive with a long history of safe use. Its ability to act as a flavour enhancer makes it valuable in various food products. While generally safe, it is advisable to consume it in moderation to avoid potential adverse effects, especially for individuals with asthma or gout.