For manufacturers focused on the high-end camellia oil market, there is a persistent industry challenge: they must thoroughly remove phospholipids, saponins and trace metal impurities from crude oil to deliver a clear, transparent product that resists clouding during storage, while also retaining camellia oil's signature delicate aroma and natural nutrients, so that the refining process does not erode the product's premium value.

Traditional water-washing degumming generates large volumes of wastewater and high environmental treatment costs, and often washes away flavor compounds. Activated clay decolorization is also difficult to calibrate: too much clay strips away the tea aroma entirely, while too little fails to meet color standards. Upgrading premium oil refining calls for a more precise, milder and more efficient adsorption solution.

Zhongqi food-grade silica gel adsorbent is developed specifically to address these pain points in edible oil refining. Built on food-grade porous silicon dioxide, it delivers directional adsorption of polar impurities through precisely engineered pore structure and surface properties. While deeply purifying the oil, it locks in camellia oil's native aroma and nutrients, making it a trusted efficiency tool for many premium oil producers.

Residual phospholipids, colloidal impurities and trace metal ions in crude camellia oil are the main causes of short shelf life, rancidity and low-temperature clouding in finished products. Incomplete degumming from traditional processes not only harms appearance, but also shortens shelf life and increases after-sales losses.

With its customized pore structure and surface polarity, Zhongqi silica gel adsorbent has strong targeted adsorption capacity for phospholipids and soapstock. It efficiently removes colloidal impurities and trace metals from camellia oil, fundamentally improving oxidation stability and clarity, and keeping the finished oil clear and stable over long storage.

Camellia oil raw material carries a high cost, and every drop of loss during refining directly cuts into margins. In traditional clay decolorization, high clay dosage and significant neutral oil entrainment are among the biggest cost pressures in premium camellia oil production.

Used together with activated clay and diatomaceous earth, this product significantly improves clay decolorization efficiency and reduces clay consumption. Meanwhile, its impurity-specific adsorption has minimal affinity for neutral oil, effectively lowering refining loss and increasing yield to make the most of valuable camellia oil feedstock.

The core competitive advantage of camellia oil lies in its natural tea aroma and nutritional components. Traditional water-washing degumming not only creates heavy wastewater discharge and environmental pressure, but also leaches out water-soluble flavor and nutrient compounds, leaving the finished oil lacking its authentic character.Zhongqi silica gel adsorbent enables water-free degumming, completing dephosphorization and degumming without a washing step. It works within the conventional refining temperature range of 60–110℃, maximally retaining natural aroma compounds and nutrients, so the finished oil delivers a clean, mellow taste that stays true to original camellia oil flavor.

Refining speed directly determines overall line capacity. Traditional adsorption materials with broad particle size distribution tend to clog filter cloth, leading to long filtration cycles and frequent slag cleaning that drag down productivity.This product has a strictly controlled average particle size (D50) of 10–30μm with a narrow, uniform distribution, delivering excellent filterability and permeability. After adsorption, it separates quickly via filtration without clogging media, shortening filtration cycles and reducing cleaning frequency, making it ideal for large-scale, continuous oil refining lines.

Besides premium camellia oil, this food-grade silica gel adsorbent is widely compatible with all types of edible oil refining, making it a versatile efficiency solution for multi-product oil manufacturers:

· Vegetable oils: Rapeseed oil, sunflower seed oil, peanut oil, soybean oil and more. It delivers efficient dephosphorization and desoaping, improves color and stability, and fits large-scale continuous refining lines.

· Animal fats: Beef tallow, mutton tallow, lard, chicken oil and others. It achieves deep degumming and impurity removal, reduces rancidity risk, and extends storage life and food safety.

At a low dosage of 0.2%–0.5%, it delivers noticeable purification results with strong return on investment. With a pH range of 3.0–8.0, it adapts to weakly acidic to weakly alkaline oil systems and drops directly into existing processes without major equipment changes.

For food processing adsorbents, safety and compliance are non-negotiable. Zhongqi food-grade silica gel adsorbent is manufactured and controlled in strict accordance with GB 25576-2020 National Food Safety Standard – Food Additive Silicon Dioxide, with ≥96% SiO₂ on a dry basis, no surface treatment and no carbon components, introducing no toxic or harmful substances at any stage.

After adsorption, the material is fully removed by filtration with no residue risk, fully satisfying food production safety requirements. Full traceability from raw material to finished product provides a solid foundation for compliant manufacturing.

In the era of consumption upgrading, competition in premium edible oils has shifted from price competition to quality competition. Preserving native flavor, stabilizing product quality, reducing production loss and advancing green production are the core pathways for oil enterprises to differentiate themselves.

Zhongqi food-grade silica gel adsorbent empowers camellia oil and edible oil refining with precision adsorption technology, helping manufacturers improve quality, reduce overall costs and build competitive advantage on the basis of compliance and safety — so every drop of oil delivers both pure quality and authentic native flavor.