Product Overview & Unique Factory Supply Advantages
We have sorted out common production pain points shared by global canned meat, jelly, plant drink and textile printing manufacturers purchasing generic sodium alginate from intermediate traders: unstable viscosity leads to uneven meat binding and printing color bleeding, excessive ash content causes cloudy beverage base liquid, incomplete heavy metal control fails EU infant food audit standards, missing Halal/Kosher/FDA certification blocks North American and Southeast Asian customs clearance, and inconsistent calcium reactivity results in failed crystal jelly bead molding. Low-quality sodium alginate also suffers from poor heat resistance, leading to gel collapse during high-temperature retort sterilization and significant finished product waste.
Our factory-produced Sodium Alginate Powder CAS 9005-38-3 adopts fresh kelp raw material whole physical extraction technology, removing seaweed fiber, inorganic salt and pigment impurities through multi-stage filtration and purification, with stable viscosity and calcium cross-linking activity maintained batch by batch. We independently produce high-viscosity and low-viscosity specifications to match different production scenarios: high-viscosity grade for sausage, canned ham and textile printing thickener, low-viscosity fine mesh grade for suspended fruit juice, plant milk and transparent crystal jelly. No chemical modification during processing, low ash content and neutral odor meet global clean-label food requirements. Consistent physical and microbial indicators reduce repeated formula adjustment costs for manufacturers. We support flexible order modes from 1kg R&D trial samples to long-term 50-ton annual framework contracts, helping food and printing factories stabilize continuous production quality.
Our food R&D team can offer free grade matching and dosage suggestions according to your production formulas.
Two Core Viscosity Grades & Differentiated Industrial Application Logic
The competitive feature of sodium alginate lies in its calcium ion cross-linking reaction, with two viscosity grades targeting food and textile dual industrial tracks - an application layout separated from single-function food-only hydrocolloids and sugar alcohol sweeteners.
High-viscosity sodium alginate forms a stable water-locking network in meat protein systems, acting as a reliable binder and water retention agent for ham, sausage and canned meat products. It effectively reduces juice precipitation during high-temperature sterilization and improves meat elasticity and tender texture. When used as a printing thickener, it delivers stable viscosity and uniform color spread without pattern bleeding, widely adopted in reactive dye textile printing production lines. It delivers stable performance under long heating conditions that differs from low-viscosity hydrocolloids.
Low-viscosity fine mesh sodium alginate dissolves rapidly in cold water without agglomeration, and forms transparent crisp elastic gel instantly when mixed with calcium lactate, the core raw material for popping boba and crystal jelly. It provides mild thickening and suspension effects for acidic fruit juice, oat milk and vegetable protein drinks without creating sticky heavy mouthfeel. The uniform film-forming property can form a thin breathable edible coating on the surface of seafood and fruits to slow water loss and extend fresh-keeping period, a practical textural advantage for fresh-keeping applications compared with konjac gum, carrageenan and gellan gum.
Food Grade Technical Specification Standard
All batches of Sodium Alginate Powder CAS 9005-38-3 comply with JECFA and FCC food additive standards. Each finished product undergoes full physical, chemical and microbial testing in our independent laboratory, supporting third-party inspection by SGS, Eurofins and Intertek to meet global factory audit requirements.
|
Test Item |
Official Standard (JECFA/FCC) |
Factory Batch Test Result |
|
Product Name |
Food Grade Sodium Alginate Powder (Brown Seaweed Extract) |
Compliant |
|
CAS Number |
9005-38-3 |
Compliant |
|
Appearance |
Off-white fine free-flowing powder, odorless |
Uniform fine crystal powder |
|
Viscosity (1% aqueous solution) |
Custom high/low viscosity |
High: 650 mPa·s / Low: 120 mPa·s |
|
Loss on Drying |
≤15.0% |
10.3% |
|
Total Ash |
≤18.0% |
14.6% |
|
Insoluble Matter |
≤2.0% |
0.8% |
|
Heavy Metals (Pb, As, Cd) |
Meet JECFA infant food safety limits |
All <0.3 ppm |
|
Total Aerobic Bacteria |
≤5,000 CFU/g |
1,050 CFU/g |
|
Coliform, Salmonella, E.Coli |
Not Detected |
Negative |
|
Storage Shelf Life |
24 months sealed dry storage |
Valid |
Whole-Process Food Safety Quality Control System
Unlike konjac gum extracted from plant tubers and fermented gellan gum, sodium alginate quality is highly dependent on brown seaweed raw material purity and alkali extraction purification technology. Our factory establishes whole-process traceable quality control covering raw material screening, physical extraction and finished product testing:
Raw material strict screening
We select fresh mature kelp from certified coastal planting bases, reject rotten and impurity-laden raw materials, each batch of seaweed passes pesticide residue and heavy metal testing before production.
Physical low-temperature purification
Multi-stage alkali extraction, water washing, decolorization and vacuum low-temperature drying without chemical modification, maintains natural polysaccharide cross-linking activity effectively and controls ash content within standard range.
Independent grade separated production
High-viscosity and low-viscosity production lines operate independently to avoid grade mixing, ensuring accurate viscosity matching for customer formula demands.
Full batch traceability testing
Every finished batch carries an exclusive traceable batch ID, complete production logs and full-spectrum microbial & heavy metal inspection reports, fully passing strict EU and US food factory audits.
All production workshops operate under ISO22000 and FSSC22000 food safety management systems. You can apply for full factory audit documents and complete batch test reports before placing bulk orders.
Four Exclusive B2B Industrial Application Scenarios
As a dual-purpose hydrocolloid with calcium cross-linking and film-forming properties, our sodium alginate powder targets four segmented high-demand production tracks, differentiated from the single food application logic of polyol sweeteners and other hydrocolloids.
Canned Meat & Sausage Production Lines
High-viscosity sodium alginate improves water retention and elasticity of ham, sausage and canned meat, stabilizes meat protein network to reduce juice separation during retort sterilization, and optimizes tender mouthfeel of finished meat products.
Crystal Jelly & Popping Boba Confectionery Factories
Low-viscosity sodium alginate reacts with calcium lactate to form transparent crisp gel, widely used in popping boba, crystal jelly and vegan gummy candy, reducing syneresis and maintaining stable gel texture during long-term shelf storage.
Plant-Based Beverage & Fruit Juice Manufacturers
Low-viscosity fine mesh sodium alginate provides mild suspension performance for oat milk, almond milk and cloudy fruit juice, resisting acid and high-temperature sterilization damage to avoid pulp precipitation and liquid layering.
Textile Printing & Fresh-Keeping Coating Production
High-viscosity sodium alginate acts as environmentally friendly thickener for reactive dye textile printing; low-viscosity grade forms breathable edible coating on seafood and fruits to lock moisture and extend fresh-keeping cycle, two additional industrial application tracks rarely covered by general food thickeners.
Factory Direct Supply Complete After-Sales Support Policy
We supply products directly from our factory with no intermediate distributors, helping customers lower risks of inconsistent quality brought by multi-level resellers, providing one-stop customized bulk supply service for global food and printing manufacturers:
Full free export certification documents
Each batch includes COA, full viscosity test report, microbial inspection report, MSDS, ISO22000, FSSC22000, Halal & Kosher certification and certificate of origin. Custom heavy metal full scan test reports are available upon client request for overseas brand audits and customs clearance. All paperwork meets EU, US and Southeast Asian food import filing standards.
24/7 professional seaweed hydrocolloid formulation technical support
Our food additive engineers answer questions about moisture-proof storage, meat binding dosage ratios, jelly calcium cross-linking matching, beverage suspension stability and textile printing viscosity adjustment, alongside tailored guidance for new low-calorie food R&D workflow optimization.
Refund & free reshipment for production-caused quality defects
If third-party food safety testing verifies unstable viscosity, excessive ash content or unqualified microbial indicators caused by our production process, we offer full order refunds or free replacement bulk shipments, covering all third-party inspection and international logistics fees. This policy excludes quality defects triggered by improper client warehouse storage, incorrect production operation or long-distance logistics water damage.
Customized service for long-term framework clients
Fixed yearly tonnage contract clients enjoy locked preferential bulk pricing, we arrange sufficient stock for delivery during peak meat/jelly/printing production seasons, staggered batch delivery schedules matching continuous factory production cycles, and free custom particle mesh viscosity adjustment without extra processing fees.
Adjustable packaging & low MOQ trial options
We supply 1kg/5kg food-grade inner aluminum trial bags and standard 25kg double PE liner fiber drums, accept custom mesh screening and private packaging printing, suitable for small-batch R&D formula testing and mass continuous production.
Full international transit damage insurance coverage
All bulk shipments carry complete cargo insurance covering packaging leakage, moisture-induced powder agglomeration and physical crushing during sea and land freight. If product damage occurs during transit, we arrange free re-delivery with zero extra cost for buyers.
New food and printing manufacturers can apply for small test samples to verify viscosity and calcium cross-linking performance prior to bulk order confirmation.
Frequently Asked Questions About Food Grade Sodium Alginate Powder CAS 9005-38-3
Q: What is the difference between high viscosity and low viscosity sodium alginate?
A: High-viscosity sodium alginate is suitable for canned meat, sausage and textile printing thickener; low-viscosity fine mesh sodium alginate fits crystal popping boba, plant-based beverage and edible fresh-keeping coating. Our technical team provides free grade matching according to your production types.
Q: What food products can food grade sodium alginate powder be used for?
A: It can be applied to canned ham, sausage, crystal jelly, popping boba, oat milk, fruit juice, and also used as edible fresh-keeping film for seafood and fruits.
Q: Is sodium alginate vegan, halal and clean-label compliant?
A: Yes. Our sodium alginate is 100% natural brown seaweed physically extracted, no animal-derived raw materials, no chemical modification, fully compliant with vegan, Halal and Kosher standards, meeting global clean-label food market requirements.
Q: What is the difference between sodium alginate and carrageenan/gellan gum/konjac gum?
A: Sodium alginate features calcium ion cross-linking gel and film-forming properties, and can be used in both food and textile industries. Carrageenan and gellan gum are mainly applied for dairy and jelly thickening with limited film-forming performance; konjac gum depends on water absorption for low-carb noodle production and has no calcium cross-linking gel property. Sodium alginate also delivers competitive cost performance for large-scale meat and printing production.
Q: How to store sodium alginate powder to maintain stable viscosity and free-flow performance?
A: Seal tightly and store in cool, dry, ventilated warehouses, avoid high-humidity workshop environments and prolonged direct sunlight exposure. Proper sealed storage maintains stable viscosity and free-flow powder texture for the full 24-month shelf life without agglomeration.
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