Diphosphates (E450)

Diphosphates (E450) is one of the markers Open Food Facts uses to classify a food as ultra-processed (NOVA group 4).

What it is and why it counts

Diphosphates are phosphate salts used as raising agents in baking powder, and to hold water in processed meats and cheese.

Cosmetic additives

NOVA calls these additives "cosmetic": they change how a product looks, feels or tastes rather than keeping it safe to eat. Their presence is one of the two defining signs of an ultra-processed food.

Function

Emulsifier: Emulsifiers are substances which make it possible to form or maintain a homogenous mixture of two or more immiscible phases such as oil and water in a foodstuff.
Humectant: Humectants are substances which prevent foods from drying out by counteracting the effect of an atmosphere having a low degree of humidity, or promote the dissolution of a powder in an aqueous medium.
Sequestrant: Sequestrants are substances which form chemical complexes with metallic ions.
Stabiliser: Stabilisers are substances which make it possible to maintain the physico-chemical state of a foodstuff; stabilisers include substances which enable the maintenance of a homogenous dispersion of two or more immiscible substances in a foodstuff, substances which stabilise, retain or intensify an existing colour of a foodstuff and substances which increase the binding capacity of the food, including the formation of cross-links between proteins enabling the binding of food pieces into re-constituted food.
Thickener: Thickeners are substances which increase the viscosity of a foodstuff.

Functional class definitions from the EU food additives regulation, via Open Food Facts.

More about diphosphates (E450) on Wikidata