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E451 is the EU approval number for triphosphates, a group of phosphate salts used as food additives. They act as emulsifying salts, stabilizers, and moisture-retaining agents in processed foods.
Add as Preferred SourceE451 is the EU approval number for triphosphates, a group of phosphate salts used as food additives. They act as emulsifying salts, stabilizers, and moisture-retaining agents in processed foods.
E451 is the EU designation for triphosphates (also known as tripolyphosphates), a group of phosphate salts approved as food additives. The main compounds in this group are sodium triphosphate (E451i) and potassium triphosphate (E451ii). They belong to the broader family of phosphates (E450–E452) and are authorized in the European Union under Regulation (EC) No 1333/2008.
Triphosphates serve several important technological roles in food production:
E451 is commonly found in the following food products:
The European Food Safety Authority (EFSA) has evaluated triphosphates and established an acceptable daily intake (ADI) of 40 mg/kg body weight per day for total phosphate intake (expressed as phosphorus). At moderate consumption levels of processed foods, E451 is considered safe.
However, the following considerations are relevant:
Under EU food law, E451 must be listed in the ingredient list of food products, either as E451 or under the name triphosphates. This allows consumers to identify whether a product contains this additive.