Food-grade adsorptive silica for vegetable oil is a dedicated food additive developed for the processing characteristics of vegetable oils, with the international code E551 and China National Standard GB 2760 code 02.002. Produced via an improved precipitation method, it strictly complies with global authoritative standards including GB 25576-2020, FDA 21 CFR, USP, FCC and EFSA.

Based on high-purity silica, the product features a porous adsorption structure tailored to the properties of vegetable oils. It can efficiently and selectively adsorb colloids, trace pigments, free fatty acids and phospholipid impurities in soybean oil, peanut oil, palm oil, rapeseed oil and other vegetable oils, without adsorbing nutrient components such as unsaturated fatty acids and vitamins in the oils. Its heavy metal residues are far below international limits, and it is odorless and non-reactive with vegetable oil components. Vegetable oils treated with this product boast high clarity and an extended shelf life, making it a premium dedicated raw material for physical refining and purification of vegetable oils.

1. Technical Specifications

2. Application Scope

Exclusively designed for vegetable oil refining and processing, this product has an adsorption structure adapted to the physical and chemical properties of different vegetable oils, with three core functions: degumming, decolorization and deacidification. It leaves no residue, does not affect the core quality of vegetable oils, and is compatible with physical refining processes for all types of vegetable oils. Specific applications are as follows:

1. Bulk vegetable oil refining: Applied in the refining of soybean oil, rapeseed oil, corn oil and other bulk vegetable oils to adsorb colloids and free fatty acids, improve oil clarity, reduce acid value and extend shelf life.

2. Edible vegetable oil purification: Used in the purification of peanut oil, sesame oil, camellia oil and other edible vegetable oils to selectively adsorb trace pigments and impurities while retaining the original flavor and nutrients of the oils.

3. Tropical vegetable oil processing: Optimized porous adsorption structure for high-viscosity tropical vegetable oils such as palm oil and coconut oil, enabling efficient degumming and impurity removal and adapting to their high-temperature processing processes.

4. Blended vegetable oil stabilization: Adsorbs free water and mixed oil impurities in blended vegetable oils to enhance the stability of the blended oil system and prevent turbidity and stratification during storage.

3. Factory Advantages

1. Dedicated formula R&D for vegetable oils: With over 20 years of experience in the field of vegetable oil processing additives, we customize adsorption structures for different vegetable oils (high-viscosity/high-pigment/high-colloid), delivering much higher impurity removal efficiency than general-purpose products.

2. Precise process adaptation: Product parameters are optimized for different vegetable oil processing technologies including cold pressing, hot pressing and solvent extraction; particle size and adsorption capacity can be adjusted according to customers' process requirements.

3. Advanced testing support: Equipped with professional equipment such as laser particle size analyzers and oil acid value testers to conduct dual testing on product adsorption performance and the quality of processed vegetable oils.

4. Full-process quality control: Produced in GMP standard production workshops, with a 26-item full inspection process from raw materials to finished products. The purity variation between batches is ≤0.5%, ensuring product consistency.

5. Technical implementation support: Our professional vegetable oil processing technical team provides on-site process adaptation guidance and optimizes dosage ratios for customers.

4. Shipping & Packaging

1. Standard packaging: 20/25kg paper-plastic composite bags with an inner food-grade PE sealing film and an outer waterproof and wear-resistant woven layer for double moisture proofing, preventing product moisture absorption and subsequent adsorption performance degradation.

2. Customized packaging: Custom packaging marks and multilingual printing are available to meet the needs of brand identification and export customs declaration.

3. Storage and transportation requirements: Non-hazardous chemical; store in a cool, dry, ventilated and dark environment (temperature ≤25℃, humidity ≤60%); compatible with global sea, air and land transportation with no special transportation requirements.

4. Labeling specifications: Each package is marked with statutory information including product name, specification, net content, production batch number, shelf life and food additive label, accompanied by product usage instructions.

5. Frequently Asked Questions (FAQs)

Q: Is this product suitable for the cold-pressed refining process of vegetable oils?

A: Yes, it is. The product's adsorption efficiency is optimized for the low-temperature and low-impurity characteristics of cold-pressed vegetable oils. Precise impurity removal can be achieved with a small dosage without damaging the natural nutrients of cold-pressed vegetable oils.

Q: How to remove the product after addition, and is there any residue?

A: The product is a solid powder and remains solid after adsorbing vegetable oil impurities. It can be removed through conventional plate and frame filtration or bag filtration in vegetable oil processing. No silica residue is left in the filtered vegetable oil, complying with global food standards.

Q: Will high-temperature processing of palm oil (≥120℃) affect the product's adsorption performance?

A: No. The product features stable performance in the temperature range of -40℃ to 200℃, without decomposition or reaction with palm oil components at high temperatures, and its adsorption performance remains stable.

Q: How to determine the optimal dosage for different vegetable oils?

A: Our technical team can determine the optimal dosage ratio through laboratory small-scale tests based on customers' vegetable oil type, impurity content and refining requirements, and provide free small-scale test plans and technical support.

6. Certifications & Honors

• International food system certifications: FSSC22000, ISO22000:2018, ISO9001:2015
• International market access certifications: FDA, USP, FCC, EFSA
• Special certifications: SHC HALAL, OU KOSHER, FAMI-QS, SEDEX
• Domestic certifications: Food Additive Production License, Feed Additive Production License
• Enterprise honors: National High-Tech Enterprise, Provincial Specialized, Sophisticated, Unique and Novel Enterprise, 17 patents issued by the National Intellectual Property Administration, GMP Standardized Production Base