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  • Panzhihua Dongfang Titanium Industry Co., Ltd. Dongfang, a well-known brand of titanium dioxide, a famous brand in Sichuan, a high-tech enterprise, a large supplier of titanium dioxide and titanium sponge, and one of the largest/leading titanium raw material production bases in China.

  • In a 2021, Chinese researchers examined the impact of E171 on lipid digestion and vitamin D3 bioaccessibility in a simulated human gastrointestinal tract model. They examined Vitamin D’s bioaccessibility, or the amount it was released in the gastrointestinal tract, becoming available for absorption, and found it “significantly decreased from 80% to 74%” with the addition of E171. In the experiment, E171 decreased lipid digestion dose-dependently. Researchers wrote: “The findings of this study enhance our understanding toward the potential impact of E171 on the nutritional attributes of foods for human digestion health.”  The study was published in the Journal of Agricultural and Food Chemistry

  • Titanium dioxide is a key ingredient in many products, including paint, sunscreen, and food coloring. As a result, there is a high demand for this versatile compound, leading to the need for reliable suppliers who can provide high-quality titanium dioxide.
  • Biointerfaces, Biomimicking, and Biohybrid Systems

  • Although barium sulfate is almost completely inert, zinc sulfide degrades upon exposure to UV light, leading to darkening of the pigment. The severity of this UV reaction is dependent on a combination of two factors; how much zinc sulfide makes up the pigments formulation, and its total accumulated UV exposure. Depending on these factors the pigment itself can vary in shade over time, ranging from pure white all the way to grey or even black. To suppress this effect, a dopant may be used, such as a small amount of cobalt salts, which would be added to the formulation. This process creates cobalt-doped zinc sulfide. The cobalt salts help to stabilize zinc sulfide so it will not have as severe a reaction to UV exposure.

  • Goshorn, J.H.; Black, C.K. (1929). The study of lithopone darkening. Industrial and Engineering Chemistry21 (4): 348–9. doi:10.1021/ie50232a021.
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  • Studies have shown that TiO2 nanoparticles can cause cytotoxicity, genotoxicity, and oxidative stress in various cell types, including human lung cells and immune cells. These findings have led to calls for more research into the potential risks of TiO2 in water supplies and the development of guidelines for safe exposure levels.
  • Ponceau 4R, also known as cochineal red, is a natural dye derived from the cochineal insect. It has been used for centuries to add color to foods and beverages, giving them a rich and vibrant red hue. However, one of the main drawbacks of Ponceau 4R is its instability, which can cause the color to fade over time or under certain conditions such as exposure to heat or light.
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