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2026
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Industry Pain Point Fully Solved! Zhongqi Silicon Material Launches Ultra-Low Iron Silica to Eliminate Ethyl Maltol Discoloration
Recently, Zhongqi (Guangdong) Silicon Material Co., Ltd. officially unveiled ZLSILW58BF, a groundbreaking food-grade silica.
Recently, Zhongqi (Guangdong) Silicon Material Co., Ltd. officially unveiled ZLSILW58BF, a groundbreaking food-grade silica. Adopting proprietary ultra-low iron manufacturing technology, its iron content is controlled at around 50 ppm, far below the conventional industrial benchmark of 500 ppm. It fundamentally resolves the long-standing discoloration issue of ethyl maltol troubling the compound sweetener sector.
As a widely applied flavor enhancer in food production, ethyl maltol delivers prominent flavor improvement. Nevertheless, it is highly sensitive to iron ions. Scientific research proves that phenolic hydroxyl groups inside ethyl maltol molecules can complex with ferric ions and form purplish-red complexes. The reaction is extremely sensitive. Even trace iron ions will turn the product from white into pink or deep red, greatly damaging appearance and market competitiveness.
“In the past, compound sweetener manufacturers could only mitigate discoloration by upgrading production facilities and optimizing processing parameters, which brought limited effects and high costs,” said the technical director of Zhongqi Silicon Material. “Our ZLSILW58BF tackles the problem at the source. With semiconductor-grade raw material purification and full-ceramic production process, we achieve an industry-leading low iron level. No discoloration will occur even when blended with high-concentration ethyl maltol.”
The physical and chemical properties of ZLSILW58BF are identical to regular food-grade silica. Customers can make direct replacement without modifying existing formulas and production procedures. The product has passed verification tests by multiple renowned domestic compound sweetener manufacturers and gained favorable feedback.
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