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Additives

Pentapotassium Triphosphate (E451II): What It Is and Is It Safe?

Moderate Stabiliser / Water Retention Agent

The potassium analogue of sodium tripolyphosphate (K₅P₃O₁₀). Used similarly to E451I for moisture retention in seafood and meats. Offers reduced sodium content compared to STPP. Cumulative phosphate concerns apply; high potassium is additionally relevant for kidney patients.

Category
Stabiliser / Water Retention Agent
Typically used in
Seafood, processed meats, low-sodium food applications
Regulatory status
Approved EU/USA/UK. Caution for kidney conditions.
Also listed as
Potassium Tripolyphosphate
Concerns flagged
Cardiovascular concernKidney effects

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Sources

Where this comes from

  1. EFSA (2019) — Re-evaluation of phosphoric acid-phosphates – di-, tri- and polyphosphates (E 338–341, E 343, E 450–452) as food additives https://efsa.onlinelibrary.wiley.com/doi/10.2903/j.efsa.2019.5674
Products

Products containing Pentapotassium Triphosphate

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