E1517 – Glyceryl Diacetate (Diacetin)

Glyceryl diacetate, commonly known as diacetin and designated as E1517, is a food additive used primarily as a solvent for flavorings and as a plasticizer in various food products. It is a diester formed from glycerol and acetic acid, resulting in a colorless, viscous, and odorless liquid with a high boiling point. 

Danger Level: 1 – Almost Safe

Purpose in Products

  • Solvent for Flavorings: E1517 effectively dissolves and disperses flavoring agents, ensuring uniform distribution throughout the food product.
  • Plasticizer: It is used to enhance the texture and flexibility of certain food items, such as in the production of ice creams and other confections. 

Health Considerations

Glyceryl diacetate is generally considered safe for consumption. There are no known harmful effects when used in foods within the recommended limits. 

Impact on Children

There is no specific evidence suggesting that E1517 poses additional risks to children when consumed in typical food quantities. Nonetheless, moderation is advised to prevent any potential adverse effects.

Impact on Taste

E1517 is tasteless and odorless, ensuring it does not alter the natural flavor of food products. Its primary function is to act as a solvent and plasticizer without impacting taste.

Compatibility with Other Additives

Glyceryl diacetate is compatible with various other food additives, particularly flavorings, enhancing their solubility and stability within the product. 

Natural Occurrence

While glycerol and acetic acid are naturally occurring substances, glyceryl diacetate itself does not occur naturally and is synthesized for industrial use. 

Alternatives and Substitutes

  • Glyceryl Triacetate (E1518): Also known as triacetin, it serves similar functions as a solvent and plasticizer in food products. 
  • Propylene Glycol (E1520): Another solvent used for flavorings, though it has different chemical properties and applications.

Regulation

E1517 is approved for use as a food additive in many countries, including those in the European Union. It is permitted as a carrier for flavorings up to 3 grams per kilogram of food. 

Conclusion

Glyceryl diacetate (E1517) is a versatile food additive that serves as a solvent for flavorings and a plasticizer in various food products. Generally recognized as safe, it can be consumed as part of a balanced diet. As with all food additives, moderation is key to prevent potential adverse effects.