Tripolyphosphate
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What it is
Tripolyphosphate is a type of phosphate salt, which are naturally occurring minerals. It is manufactured by heating other phosphate salts. In food, it is often used in its sodium salt form, known as sodium tripolyphosphate (STPP).
Why it's used
Tripolyphosphate is used as a preservative and to help retain moisture in foods. It can also improve texture and act as an emulsifier, helping to blend ingredients that don't normally mix, like oil and water. It is commonly found in processed meats, seafood, and dairy products.
Health notes
Tripolyphosphate is generally recognized as safe (GRAS) by the FDA for use in food. Phosphates are naturally present in many foods and are essential minerals. High phosphate intake from all sources has been linked to potential health concerns in some studies, particularly for individuals with kidney disease. However, the amounts used in food are typically small. JECFA and EFSA have evaluated phosphates, and they have established acceptable daily intakes.
Allergen info
Not a major allergen.