Food Grade Sodium Tripolyphosphate (STPP) — E451(i) / INS 451 Supplier for Meat & Seafood Processing
Goway supplies food-grade STPP (E451(i) / INS 451) manufactured under dedicated food-additive controls with batch traceability. It is commonly used in meat and seafood processing for moisture retention, texture improvement, and sequestration.
Request our certificate pack and the latest COA (including heavy metals) based on your destination market.
- Food additive: STPP E451(i) / INS 451
- Use cases: Seafood, meat products, processed foods (moisture & texture)
- Quality control: Batch traceability + heavy metals checks on COA
- Certificates (on request): HALAL / KOSHER / other destination-specific docs
- Packing: 25kg lined bags (custom packing available)
- Support: Application guidance + typical dosage references
Note: This page is for food additive use. For detergent, ceramics, or water treatment applications, please visit our Industrial STPP page.
GOWAY Chemical supplies food-grade Sodium Tripolyphosphate (STPP, E451(i)) produced under food-use controls with reliable batch consistency.
It is commonly used in meat, seafood, noodles, and processed foods to support moisture retention, improve texture, and act as a sequestrant.
E-Number: E451(i) |
CAS: 7758-29-4 |
Standard: GB 1886.335-2021 |
Quality Reference: FCC (upon request)
Samples available for lab testing. Request the latest COA + certificate pack with destination market and application.
Buyers typically confirm certificates first. Provide destination market + application to receive the correct set (HALAL / KOSHER / COA).
Standards & Compliance (Food Grade)
Manufactured for food use with food-safety controls and batch traceability. Compliance documents are available for buyer audits.
Food Additive Identity
- E-Number: E451(i)
- CAS: 7758-29-4
- China Standard: GB 1886.335-2021
- FCC: Available upon request (for destination market compliance)
Food Safety Management
- ISO 22000 / HACCP inspection-ready documentation (upon request)
- COA / SDS / TDS available upon request
- Low heavy metal control for food processing requirements
Note: Please follow your local food additive regulations and permitted usage levels.
Product Overview
Food-grade Sodium Tripolyphosphate (STPP) is a white crystalline or granular phosphate used in food processing for
water retention, protein stabilization, and texture improvement,
especially in processed meat, seafood, surimi, and frozen prepared foods.
Technical Specification (Food Grade – Typical)
Typical specifications for food-grade STPP. Final shipped-batch data is subject to the COA.
Key differentiators for food buyers: heavy metals control and high solubility.
| Items | Specification (Food Grade) |
|---|---|
| Appearance | White crystalline / granular |
| Assay (as Na5P3O10) | Per GB 1886.335-2021 / customer required FCC spec (COA based) |
| P2O5 Content | Per standard & COA (destination market requirement) |
| Arsenic (As) | ≤ 3 mg/kg |
| Heavy Metals (as Pb) | ≤ 10 mg/kg |
| Fluoride (F) | ≤ 50 mg/kg |
| Whiteness | High whiteness for premium food appearance |
| Solubility | High solubility for food processing |
| pH (1% solution) | Per standard & COA (controlled for stable processing) |
Tip: Food buyers usually require the latest COA with batch No., production date, and heavy metal results.
Packaging Options
- 25 kg lined bag (food-grade)
- 50 kg bag with inner liner
- Other packing options available upon request
Specific Applications in Food Processing
Meat & Poultry
Improves water retention and yield, enhances slicing performance, stabilizes proteins,
reduces cooking loss, and maintains juiciness in ham, sausage, and marinated poultry.
Seafood Processing
Helps prevent moisture loss and color change during freezing/thawing, reduces drip loss,
and supports texture stability for shrimp, fish, and surimi products.
Noodle & Dairy Systems
Enhances noodle elasticity and bite, supports buffering/emulsification,
and helps prevent separation in certain dairy-based sauces and formulations.
Note: Usage levels must follow local regulations and your formulation requirements.
Typical Usage & Dosage Reference
Note: Always comply with your region’s food additive regulation. Below are common reference ranges.
- Processed meats: 0.3%–0.8% (depending on formulation)
- Seafood/surimi: 0.2%–0.5%
- Frozen prepared foods: 0.1%–0.4%
- Dairy/bakery systems: typically 0.1%–0.3% (with other stabilizers)
Why Choose GOWAY Chemical
- Dedicated food-additive production line – avoids cross-contamination with industrial chemicals
- Batch consistency with COA for every shipment
- Export-ready documents: certificates, COA, SDS, traceability support
- Flexible supply for food factories and distributors
Certificates
Food-grade buyers often require certificate verification before RFQ. Provide destination market, application,
and annual demand for the right document set.
Storage, Handling & Food Safety
- Store in a cool, dry warehouse; protect from moisture and odors
- Use only food-grade containers and avoid contamination
- Shelf life: 18–24 months under proper storage conditions
- Use appropriate PPE and keep the handling area clean
Not for food use? View our Industrial Grade Sodium Tripolyphosphate for detergent and water treatment applications.
Quality / Documents / Buyer guide
Food Grade STPP FAQ
Q1: Is food-grade STPP the same as E451(i) / INS 451?
A: Yes. In food applications, Sodium Tripolyphosphate (STPP) is commonly listed as E451(i) (EU) and INS 451 (Codex/INS system).
Q2: What is food-grade STPP mainly used for in processing?
A: Food-grade STPP is widely used in meat and seafood processing to help with moisture retention, texture improvement, and sequestration (binding metal ions that can affect stability and quality).
Q3: What is the typical dosage for meat and seafood applications?
A: Typical use levels depend on product type, processing method, and local regulations. Many processors use STPP within a controlled range and verify results through yield, texture, and sensory tests. Tell us your product (shrimp/surimi/fish fillet/meat), and we can share common reference ranges and application notes.
Q4: Do you provide FCC-related documents or destination compliance files?
A: We can provide a certificate/document pack based on your target market and buyer requirements. Please specify your destination country and any requested standards so we can prepare the correct documents.
Q5: What heavy metal items are included in the COA?
A: A typical food-grade COA may include limits for items such as As and Pb, and other checks required by your market or customer specifications. Request our latest COA to confirm the exact tested items and ranges.
Q6: How do you ensure it’s suitable for food additive use (cross-contamination control)?
A: Food-grade STPP is produced with food-additive controls, batch traceability, and appropriate handling procedures to reduce cross-contamination risk. If your customer requires a specific statement or audit documents, tell us and we’ll support accordingly.
Q7: What packaging options do you offer?
A: Standard packing is 25kg lined bags. Custom packing options can be discussed depending on shipment method and customer requirements.
Q8: Do you provide samples before bulk orders?
A: Yes. Samples can be provided for qualification. Please share your application, target specs, and shipping details, and we will advise the sample quantity and process.
Contact Us for Food-Grade STPP SupplyWhatsApp: Talk to Food Additive Specialist