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ZLXIDE® WPS300 Food Grade Precipitated Silicon Dioxide — Your Trusted E551 Additive for Global Food Manufacturing
Created on 08.05
ZLXIDE® WPS300 Food Grade Precipitated Silicon Dioxide —
Your Trusted E551 Additive for Global Food Manufacturing
In the fast-paced world of powdered food production, dietary supplements, seasoning blends, and beverage processing, food grade silicon dioxide (E551) stands as an indispensable functional ingredient for anti-caking, high adsorption, and superior stability. Jointly developed by Zhongqi (Guangdong) Silicon Materials and Shandong Zhonglian Chemical, ZLXIDE® WPS300 precipitated amorphous silica is manufactured under the strictest compliance with FCC Food Chemicals Codex, GB 25576-2020, EU E551 regulations, and US FDA 21 CFR 172.480. Directly comparable to imported PS-300 grade silica, WPS300 delivers equivalent performance, reliable supply chain stability, and superior cost efficiency — making it the one-stop compliant solution for food, dietary supplement, and feed manufacturers worldwide.
1. Rigorous Manufacturing Process Delivers Ultra-Pure, Safe Silica Backed by Global Certifications
ZLXIDE® WPS300 is produced using a controlled precipitation process, distinct from industrial crystalline silica. The final product is a pure white, fine amorphous powder with no sharp crystalline peaks, no irritating dust odor, and chemically inert properties — it does not react with proteins, fats, or sugars in food formulations, preserving the original flavor, color, and nutritional profile of your products.
1.1 Core Physicochemical Specifications — Performance Benchmarked Against Global Leaders
With a silica purity of ≥98.0% on an ignited basis, BET specific surface area of 170–210 m²/g, and DBP absorption value of 280–300 mL/100g, WPS300's porous structure delivers exceptional adsorption capacity. Its bulk density of ≤160 g/L, uniform D50 particle size of 11–18 μm, and 325-mesh residue of ≤0.1% ensure no coarse particles clog production equipment. The pH is stably maintained at 6.5–7.5, compatible with the vast majority of food formulation systems, with both loss on drying and loss on ignition controlled within 7% for outstanding moisture resistance.
Heavy metal control far exceeds industry baseline requirements: lead ≤3.0 mg/kg, arsenic ≤1.5 mg/kg, cadmium/mercury ≤0.5 mg/kg, and total heavy metals ≤10 mg/kg — fully meeting FCC and EU food additive heavy metal limits with zero toxic residue.
1.2 Zero Microbial Risk — No Post-Process Sterilization Required
Manufactured in FSSC22000, ISO22000, ISO9001, and FAMI-QS certified cleanroom facilities with high-temperature drying processes, WPS300 requires no post-sterilization methods such as ethylene oxide fumigation or gamma irradiation. Microbial contamination is controlled at the source:
- Total aerobic count ≤1000 CFU/g; yeast & mold, fecal coliforms ≤100 CFU/g
- E. coli, Salmonella, and Staphylococcus aureus — not detected in 10g samples
All microbial data is provided with every batch Certificate of Analysis (COA), fully matching imported PS-300 microbial acceptance standards and eliminating compliance risks associated with irradiated additives.
1.3 Comprehensive Global Qualifications — Dual Compliance for Domestic & Export Markets
The product holds food additive production licenses and feed additive qualifications, along with Halal certification, OU Kosher certification, SEDEX ethical trade audit, and FDA facility registration — perfectly suited for domestic retail, and export to North America, Europe, Southeast Asia, and the Middle East. Every batch ships with a complete Certificate of Analysis (COA) covering full physicochemical, heavy metal, and microbial test data, ensuring smooth customs and food safety inspections.
2. Six Core Functions — Covering the Full Spectrum of Food Processing Applications
As a multifunctional food additive E551, ZLXIDE® WPS300 serves multiple purposes, solving powder production and liquid processing pain points in one solution:
- Powerful Anti-Caking Agent
The porous structure preferentially adsorbs free moisture and oils on powder surfaces, forming an isolation layer between particles. It completely solves caking, bridging, and poor flow issues in milk powder, protein powder, compound seasonings, coffee creamer, and sugar substitutes during long-term storage. Powder flowability improves by 30%–50%, significantly enhancing filling and dosing accuracy.
- High-Efficiency Carrier Agent
Liquid flavors, essential oils, vitamins, functional oils, and antioxidants can be adsorbed and converted into free-flowing dry powders, simplifying formulation blending processes and reducing storage and dosing losses of liquid raw materials. Widely used as a carrier for compound nutrient premixes, solid beverages, and feed trace elements.
- Adsorption, Impurity Removal & Moisture Protection
Adsorbs excess moisture, odors, and free oils from raw materials, extending the shelf life of powdered foods. In spices and baking premixes, it inhibits moisture-induced mold growth, keeping powder state stable throughout the 24-month shelf life.
- Defoaming & Filtration Aid
Suppresses foam overflow during beverage and fermented food processing, boosting production line efficiency. In the filtration of edible oils, fruit juices, and brewed wines, it serves as a filter aid, adsorbing colloidal impurities and improving filtrate clarity — with no residue and no impact on taste.
- Thickening, Stabilizing & Anti-Settling Agent
Builds a stable network structure in yogurt, plant-based milks, sauces, and functional oral liquids, inhibiting sedimentation and stratification of pulp, fiber, and nutrient particles. In low-fat dairy products, it compensates for the thin mouthfeel caused by fat reduction, delivering a smooth and uniform texture.
- Compliant Feed Additive
Meets FAMI-QS feed standards for use in livestock, poultry, and aquaculture compound premixes, preventing caking of minerals and vitamins, ensuring uniform feed mixing, and being safe for animal consumption with no side effects.
3. Three Core Competitive Advantages Over Imported PS-300 Silica
While mainstream imported PS-300 silica offers stable performance, it suffers from long lead times, high minimum order quantities, slow after-sales response, and elevated procurement costs. ZLXIDE® WPS300 enables 1:1 direct formula replacement with significant advantages:
3.1 Equivalent Performance — Specifications Fully Aligned
Key parameters including sensory properties, heavy metals, microbiology, specific surface area, DBP absorption, and particle size closely match PS-300 specification sheets. No need for companies to re-adjust formulations or replace production lines, with high test pass rates and reduced R&D modification costs.
3.2 Domestic Factory Delivery — Stable & Controllable Supply Chain
Production bases are located in Guangdong and Shandong — two major production hubs — with self-owned 10,000-ton production lines and ready stock available at all times. Packaging options include 10kg/15kg food-grade paper bags, 500kg/1000kg bulk bags, and custom specifications. With nearby logistics, delivery cycles are shortened by 70%, eliminating risks of overseas shipping delays, port congestion, and tariff hold-ups.
Supplier commitment: No changes to raw materials or production processes without written customer consent. Every batch is retained for re-testing. Shelf life is 24 months under storage conditions of 5–30°C and humidity <65%.
3.3 Outstanding Cost Performance — Full-Process Technical Support Included
Procurement costs are 20%–30% lower than imported products of equivalent quality, reducing raw material expenses for businesses. Professional application engineers provide free formula dosage adjustment, powder flow optimization, filtration process optimization, and export compliance documentation guidance. Free samples are available for testing, with full technical follow-up throughout the process.
4. Standardized Packaging & Safe Storage — Built for Industrial-Scale Production
Packaging Solutions (Customizable on Demand)
- Standard:
10kg/15kg multi-layer food-grade kraft paper bags, palletized for dust and moisture protection
- Bulk:
500kg and 1000kg food-grade FIBC bulk bags, compatible with automated dosing systems
- Sample:
1–5kg aluminum foil sealed sample bags, convenient for laboratory formulation testing
Each package is clearly labeled with product model ZLXIDE® WPS300, food-grade FCC designation, production date, batch number, net weight, storage conditions, and shelf life — meeting domestic and international labeling regulatory requirements.
Safe Handling & Storage Guidelines
Store in a cool, dry, and ventilated warehouse; keep sealed in original packaging away from light with environmental relative humidity controlled below 65%. During operation, wear N95 dust masks, nitrile gloves, and safety goggles. Ensure workshop ventilation to avoid dust inhalation. A complete Material Safety Data Sheet (MSDS) is provided with every shipment, ensuring production operation risks are clearly understood and controlled.
5. Target Industries & Customized One-Stop Services
Applicable Downstream Sectors
Solid beverages, protein powder, meal replacement powder, dairy and milk powder products, spice and compound seasonings, baking premixes, candy and sugar substitutes, dietary supplements, oral liquid beverages, brewed edible oils, compound feed premixes, and flavor & fragrance manufacturers.
Exclusive Enterprise Services
- Free sample shipping, with support for full-item testing and comparison by third-party authoritative institutions
- Customized physicochemical parameter fine-tuning (specific surface area, DBP absorption adapted to special formulations)
- Complete export qualification documentation (COA, copies of various certifications, customs declaration materials)
- Long-term partner benefits including quarterly inventory reservation, credit term support, and on-site process guidance
Conclusion
ZLXIDE® WPS300 food grade precipitated silicon dioxide breaks the monopoly of overseas brands with four core competitive strengths: global compliance standards, import-grade stable performance, efficient domestic supply chain, and outstanding cost performance. It provides food and feed processing enterprises with a safe, worry-free, and cost-effective E551 silica alternative solution. From laboratory-scale trials to 10,000-ton mass production supply, quality is fully controllable, qualifications are complete, and technical support is — making it an indispensable high-quality functional ingredient for powder and liquid food processing. We welcome manufacturers across all industries to inquire, request samples, and visit our facilities for long-term partnership discussions!
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