What is Sodium Tripolyphosphate (STPP) Food Grade?
Sodium Tripolyphosphate (STPP) is a phosphorus-based chemical compound commonly used in the food industry as a preservative, texturizing agent, and moisture-retaining additive. It enhances food quality and shelf life by binding water and improving food texture. STPP is often used in meat, seafood, dairy, and processed foods to:
✔ Improve moisture retention and prevent dehydration
✔ Enhance texture and mouthfeel in processed foods
✔ Stabilize color, flavor, and consistency in canned foods
✔ Increase freezing tolerance in seafood and meat products
✔ Aid in protein dispersibility and emulsification
✔ Benefits of Sodium Tripolyphosphate in Food
Preservation of Freshness:
Texture Improvement:
Moisture Retention:
Improved Color and Appearance:
Food Quality Control:
📌 Applications of Sodium Tripolyphosphate Food Grade
✔ Meat Industry (Pork, Beef, Poultry)
Used to retain moisture in meat products such as sausages, ham, and processed deli meats
Improves texture, tenderness, and appearance in frozen meat cuts
Aids in water retention during thawing, preserving product weight
✔ Seafood Industry (Fish, Shrimp, Shellfish)
Prevents drip loss and dehydration in frozen seafood, enhancing the weight and texture of shrimp, fish, and shellfish
Retains freshness and enhances visual appeal during storage
Used in surimi production to improve texture and emulsification
✔ Dairy Products
Improves the texture and moisture retention in cheese and processed dairy products
Helps in emulsification of cheese and processed dairy blends
Used in milk powder to prevent clumping and maintain product flowability
✔ Fruit and Vegetable Processing
✔ Beverages & Sauces
Used in beverages to stabilize cloudy products and improve clarity
In sauces and gravies, it helps with viscosity control and stabilization
📌 Production Method & Raw Materials
✔ Raw Materials Used:
Phosphoric Acid (H₃PO₄) – Primary source of phosphorus
Sodium Carbonate (Na₂CO₃) – Reacts with phosphoric acid to form sodium tripolyphosphate
Water – For dilution and purification
✔ Production Process:
Synthesis of Sodium Tripolyphosphate:
Crystallization & Filtration:
Drying & Granulation:
Quality Control & Packaging:
📌 Product Specifications
| Property | Specification |
|---|
| Chemical Formula | Na₅P₃O₁₀ |
| Appearance | White crystalline powder |
| Purity (min) | ≥ 94% |
| Water Solubility | Soluble in water |
| P2O5 Content (%) | ≥ 57% |
| Heavy Metals (ppm) | ≤ 10 |
| Arsenic (As) ppm | ≤ 2 |
| Lead (Pb) ppm | ≤ 2 |
| Packaging | 25kg, 50kg bags or bulk |
| Shelf Life | 24 months
|
Know more about STPP here : https://www.khonorchem.com/phosphate/61.html