Sodium Acid Pyrophosphate, chemically known as Disodium Dihydrogen Pyrophosphate (Na₂H₂P₂O₇), is an indispensable inorganic compound widely utilized as a slow-to-fast acting leavening acid, moisture retention agent, buffering system, and metal chelator in industrial food manufacturing.
SAPP is classified by its Rate of Reaction (ROR)—the percentage of carbon dioxide released from sodium bicarbonate during mixing relative to total available gas. We manufacture SAPP 15 (Slow), SAPP 28 (Standard Medium), and SAPP 40/43 (Fast) to match exact industrial processing thermal windows.
In Thailand's massive frozen seafood export sector, SAPP acts as a synergistic polyphosphate agent. It increases muscle protein ionic strength, enhances myofibrillar water binding capacities, prevents drip loss during freezing/thawing, and preserves natural translucent gloss in penaeus vannamei and cephalopods.
By chelating trace iron (Fe³⁺) and copper (Cu²⁺) ions, SAPP mitigates enzymatic and non-enzymatic discoloration in potato processing, taro paste, and seafood products, preventing enzymatic blackening (melanosis) in tropical raw shrimp without altering natural flavor profiles.
Our Sodium Acid Pyrophosphate is produced under ISO 22000 and FSSC 22000 certified standards, fully compliant with Thai FDA Food Additive Regulations and Codex Alimentarius guidelines.
| Chemical Specification Parameter | Food Grade (FCC IX / E450i) | Seafood Special Grade | Technical / Industrial Grade |
|---|---|---|---|
| P₂O₅ Content (%) | 63.0 - 64.5% | 63.5 - 64.2% | ≥ 63.0% |
| Na₂H₂P₂O₇ Assay (%) | ≥ 95.0% | ≥ 95.5% | ≥ 93.0% |
| pH Value (1% Aqueous Solution) | 3.8 - 4.4 | 4.0 - 4.5 | 3.5 - 4.5 |
| Rate of Reaction (ROR) Options | ROR 15 / ROR 28 / ROR 40 | ROR 15 - 28 (Slow Hydrolysis) | Standard N/A |
| Arsenic (As) | ≤ 1.0 mg/kg (ppm) | ≤ 1.0 mg/kg (ppm) | ≤ 3.0 mg/kg (ppm) |
| Heavy Metals (as Pb) | ≤ 10.0 mg/kg (ppm) | ≤ 5.0 mg/kg (ppm) | ≤ 20.0 mg/kg (ppm) |
| Fluoride (F) | ≤ 10.0 mg/kg (ppm) | ≤ 10.0 mg/kg (ppm) | ≤ 50.0 mg/kg (ppm) |
| Water Insoluble Matter (%) | ≤ 0.6% | ≤ 0.2% (Crystal Clear Solution) | ≤ 1.0% |
| Loss on Drying (105°C) (%) | ≤ 0.5% | ≤ 0.5% | ≤ 1.0% |
From Eastern Seaboard seafood processing facilities in Rayong and Chonburi to bakery plants around Greater Bangkok, our custom SAPP grades deliver exact functional performance.
Thailand is one of the world's premier exporters of frozen White Leg Shrimp (Penaeus Vannamei), Black Tiger Shrimp, and squid. SAPP is incorporated into specialized soaking dip formulations (frequently combined with Sodium Tripolyphosphate STPP and Sodium Hexametaphosphate SHMP).
Key Functional Advantage: Our low-insoluble Seafood Grade SAPP penetrates the muscle tissues uniformly without leaving white residue on shrimp shells. It maintains sensory texture post-thawing, reduces thaw-drip loss by up to 4.5% - 7.0%, and complies with EU and US import phosphate residual standards.
Thailand's wheat noodle and instant ramen factories require rapid dough elasticity adjustment and precise gluten matrix stabilization during high-speed sheeting and frying/drying processes.
Key Functional Advantage: SAPP 28 acts as a pH modifier and dough conditioner. It prevents noodle yellowing degradation, enhances starch gelatinization during boiling, creates a firm "bite" (al dente elasticity), and inhibits free fatty acid oxidation during deep frying, extending shelf-life in tropical retail environments.
Steamed buns (Salapao) and commercial sponge cakes demand controlled gas release to avoid large collapse voids, crumbly textures, or unpleasant alkaline aftertastes.
Key Functional Advantage: SAPP 15 (Slow ROR) is ideal for refrigerated doughs and ready-to-bake batters, ensuring minimal CO₂ release during mixing and maximum expansion during oven proofing. SAPP 28 (Standard ROR) delivers uniform cell structure, bright white crumb color in Salapao, and consistent loaf volume.
In Thai emulsified meat products like pork/chicken meatballs (Luk Chin) and Isan-style sausages, fat separation and rubbery texture loss under hot weather are constant operational challenges.
Key Functional Advantage: SAPP works synergistically with native starches and soy protein concentrates. It raises raw meat pH slightly, unleashes natural myosin protein solubility, binds free water, locks in natural meat juices, and prevents cook-shrinkage during high-temperature blanching.
As Thailand expands its identity as the "Kitchen of the World," food manufacturers must comply with strict local regulations while optimizing procurement cost structures.
The Ministry of Public Health Thailand (Notification No. 418/2563) regulates food additive usage. SAPP (INS 450i) is approved with defined Maximum Permitted Levels (MPLs) in finished foods (e.g., maximum 5,000 mg/kg calculated as P₂O₅ in processed meat and seafood products).
Our export documentation package includes Full Certificate of Analysis (COA), batch-specific heavy metal test reports, and non-GMO statements for fast Thai FDA customs clearance.
With Thailand exporting processed food heavily to ASEAN, the Middle East, and Muslim-majority markets, Halal integrity is essential. Our manufacturing plant holds accredited Halal Certification recognized by CICOT (The Central Islamic Council of Thailand) and JAKIM.
Zero cross-contamination protocols and dedicated synthetic inorganic synthesis lines guarantee total compliance with strict Islamic dietary laws.
Thailand's tropical high humidity (average RH > 75%) often causes inferior phosphate powders to absorb moisture, leading to severe caking, lump formation, and loss of leavening activity inside warehouse environments.
We pack our SAPP in heavy-duty 25kg PE-lined inner bags with 3-ply Kraft paper outer layers or custom heat-sealed poly-woven jumbo bags (1,000kg) featuring UV-resistant barriers.
We bridge high-volume Chinese manufacturing scale with flexible container consolidation, fast shipping lanes, and comprehensive technical support.
Direct vessel sailings from major Chinese ports (Qingdao, Tianjin, Ningbo, Shanghai) reach Laem Chabang Port or Bangkok Port (Klong Toey) in just 7 to 10 days, minimizing inventory holding costs.
Combine SAPP orders with other essential additives in one single FCL shipment—such as STPP, TSPP, Soy Protein Concentrate, Caramel Powder, Paprika Oleoresin, or Yeast Extract—to lower landed freight costs.
Our technical team provides customized ROR blending, pH adjustment solutions, and trial sample kits to match your precise factory dough or seafood brine formulation requirements.
Under the China-ASEAN Free Trade Agreement (ACFTA), we issue official Form E Certificates of Origin, allowing Thai importers to enjoy reduced or 0% preferential import tariffs at customs.
Answers to common purchasing, regulatory, and logistics queries from Thai food manufacturers and chemical distributors.
