Ingredient · E451

Salt And Sodium Tripolyphosphate To Retain Freshness

Source
Not animal-derived
Allergen
No
Role in food
STPP is added to foods, especially seafood, to help them retain moisture and improve …

What is Salt And Sodium Tripolyphosphate To Retain Freshness?

Sodium tripolyphosphate (STPP) is a salt made from sodium and phosphorus. It is a white, powdery substance that is soluble in water. STPP is produced industrially by heating a mixture of sodium acid pyrophosphate and sodium carbonate.

Is Salt And Sodium Tripolyphosphate To Retain Freshness vegan?

Salt And Sodium Tripolyphosphate To Retain Freshness is not animal-derived. Products that contain it can still include other animal-derived ingredients, so check the full ingredient list.

Is Salt And Sodium Tripolyphosphate To Retain Freshness gluten-free?

It does not contain gluten.

Is Salt And Sodium Tripolyphosphate To Retain Freshness a major allergen?

Sodium tripolyphosphate is not derived from any of the FDA's major allergens.

What is Salt And Sodium Tripolyphosphate To Retain Freshness used for?

STPP is added to foods, especially seafood, to help them retain moisture and improve texture.

Is Salt And Sodium Tripolyphosphate To Retain Freshness safe?

STPP is generally recognized as safe (GRAS) by the FDA for use in food.

Why it's used

STPP is added to foods, especially seafood, to help them retain moisture and improve texture. It acts as a preservative and moisture retainer, making products like frozen shrimp appear plumper and juicier. It is also used in some processed meats and dairy products.

Health notes

STPP is generally recognized as safe (GRAS) by the FDA for use in food. The Joint FAO/WHO Expert Committee on Food Additives (JECFA) has evaluated STPP and established an acceptable daily intake. While generally considered safe in typical food amounts, excessive phosphorus intake from all sources can be a concern for individuals with kidney disease.

Allergen info

Sodium tripolyphosphate is not derived from any of the FDA's major allergens. It does not contain gluten.

Foods that contain Salt And Sodium Tripolyphosphate To Retain Freshness

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Peeled & Deveined Tail-Off Cooked Shrimp Supreme Lobster and Seafood Company Peeled & Deveined Tail-Off Cooked Shrimp Frozen Fish & Seafood High in cholesterol — 26% DV per serving 59kcal 12.9Protein 0Fat 0Carbs
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Supreme Lobster and Seafood Company Cooked Tail-On Shrimp Frozen Fish & Seafood High in cholesterol — 55% DV per serving 95kcal 21.4Protein 0.6Fat 0Carbs
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Supreme Lobster and Seafood Company Cooked Shrimp Frozen Fish & Seafood High in sodium — 47% DV per serving High in cholesterol — 80% DV per serving 124kcal 23.0Protein 1.8Fat 1.8Carbs
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Supreme Lobster and Seafood Company Cooked Shrimp Frozen Fish & Seafood High in cholesterol — 55% DV per serving 71kcal 16.1Protein 0.5Fat 0Carbs
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Supreme Lobster and Seafood Company Cooked Shrimp Frozen Fish & Seafood High in cholesterol — 55% DV per serving 71kcal 15.9Protein 0.4Fat 0Carbs
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Supreme Lobster and Seafood Company Cooked And Broken Penaeus Vannamei Frozen Fish & Seafood High in cholesterol — 55% DV per serving 95kcal 21.4Protein 0.6Fat 0Carbs
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Supreme Lobster and Seafood Company Peeled & Deveined Tail - Off Raw Shrimp Frozen Fish & Seafood High in cholesterol — 70% DV per serving 80kcal 17.9Protein 0.9Fat 0Carbs
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Supreme Lobster and Seafood Company E - Z Peel Shell - On Raw Shrimp Frozen Fish & Seafood High in sodium — 37% DV per serving High in cholesterol — 45% DV per serving 62kcal 13.4Protein 0.5Fat 0Carbs
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Supreme Lobster and Seafood Company Raw Shrimp Frozen Fish & Seafood High in sodium — 28% DV per serving High in cholesterol — 36% DV per serving 60kcal 15.0Protein 0Fat 0Carbs
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Farm Raised Shrimp (81 products) Shrimp (2415 products)

Auto-generated content. This description was generated automatically and is pending editorial review. Inaccuracies are possible. Found a mistake? Contact us.

Last updated: September 28, 2026

Note: This site presents label data from USDA FoodData Central for general information. It is not medical advice. Check the package label; formulations change.