What is E 423?
E 423 is the E number of Octenyl succinic acid modified gum arabic. Chemically modified gum arabic used as an emulsifier, for example in drinks.
What is E 423 used for?
E 423 belongs to the group "Other additives" and is used as emulsifier.
- Emulsifier: Emulsifiers combine ingredients that would not otherwise mix, such as oil and water, and keep the mixture stable.
Which foods may contain E 423?
According to the European Commission's database, E 423 may be used in 3 food categories and subcategories, each only in specific products and usually with maximum levels. The categories come from these areas:
- Confectionery
- Salts, spices, soups, sauces, salads and protein products
- Beverages
Is E 423 vegan?
Usually yes: the substance is normally made from plant, mineral or synthetic raw materials or with microorganisms. In individual cases, only the manufacturer or a vegan label can give certainty.
Is E 423 linked to genetic engineering?
No typical link to genetic engineering is known for this substance: it is not usually obtained from plants for which GM varieties exist, nor produced by fermentation.
How does E 423 appear on the label?
In the list of ingredients, the substance appears with its function, followed by the E number or the name, for example "Emulsifier: E 423" or "Emulsifier: Octenyl succinic acid modified gum arabic".
Sources
- Regulation (EC) No 1333/2008, consolidated version of 18.08.2026, Annexes I and II, EUR-Lex
- Food Additives Database, European Commission (accessed 19 October 2026)