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2025
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A core enabler for long-term maintenance of frying oil quality and safety improvements.
With the food industry's pursuit of health and sustainability, the application of targeted functional modified silica and recyclable silicon-based adsorption materials is accelerating
Frying oils in food processing face stringent requirements for long-term stability, safety, health, and cost control. Silica, with its precise adsorption and controllable capabilities, has become the "invisible core" of frying oil quality management. It plays an irreplaceable role in inhibiting deterioration, purifying the oil, and extending its lifespan, making it suitable for large-scale frying operations in restaurant chains and the food industry.
Its core advantage stems from its targeted structural design. Silica specifically designed for frying oil utilizes a high-purity precipitation-modification process, resulting in a pore size concentrated in the mesoporous range of 10-50 nm and a specific surface area of 500-800 m²/g. Its surface is activated with hydroxyl groups, resulting in highly selective adsorption of polar compounds, free fatty acids, and metal ions generated during the frying process. It also meets food-grade safety standards (GB 28401 and FDA 21 CFR).
For quality maintenance, it serves as a "deterioration inhibitor." Every 0.2%-0.5% addition of silica during frying can absorb over 90% of acrylamide precursors and polar polymers, reducing the rate of increase in the frying oil's acid value and peroxide value by 60%. This effectively inhibits the development of a rancid odor, ensuring fried foods maintain their crisp texture and pure flavor, and extending the oil's lifespan by 2-3 times.
In the area of safety enhancement, silica has become a "harmful substance remover." Mesoporous silica, through both pore entrapment and surface adsorption, can remove carcinogens such as aflatoxin and benzopyrene produced by repeated frying, achieving a removal rate of over 85%. It also absorbs trace heavy metal ions (such as Fe⁺ and Cu⁺) in the oil, disrupting their catalytic oxidation process and mitigating food safety risks at the source.
In terms of cost optimization, it is a highly efficient energy-saving aid. By reducing the frequency of frying oil changes, oil consumption costs can be reduced by over 40%. Furthermore, the adsorbed silica is easily separated by filtration, leaving no impurities, preventing equipment clogging and reducing maintenance costs.
With the food industry's pursuit of health and sustainability, the application of targeted functional modified silica and recyclable silicon-based adsorption materials is accelerating, providing new paths for upgrading frying oil quality and promoting green processing.
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Jinan City, Shandong Province,China
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