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Titanium dioxide coating can avoid food contamination

wallpapers News 2020-07-21
Durable coatings can help the food processing industry keep food contact surfaces clean, including meat processing plants. A new study by a team of engineers and food scientists at the University of Missouri shows that this coating made of titanium dioxide can eliminate food-borne pathogens like Salmonella and E. coli and provide preventive protection for stainless steel food contact surfaces to prevent crossover Pollution.
The research was carried out by Eduardo Torres Dominguez, who is studying for a Ph.D. in chemical engineering at the MU School of Engineering. The research team includes researchers from the School of Engineering and the MU School of Agriculture, Food and Natural Resources.

Under the action of ultraviolet light, oxygen, and water, titanium dioxide will activate and kill the bacteria smeared on food contact surfaces. Although the coating is applied in liquid form at the beginning of the process, once it is ready for use, it becomes a hard material, like a thin layer of ceramic.

They completed the process of finding, selecting, synthesizing, and characterizing titanium dioxide material, a known disinfectant, and food safe.

"We chose this material, knowing it will have good antibacterial behavior, and we strengthened its mechanical stability to withstand the normal wear and tear in a typical food processing environment," Hunt said. "In addition to normal cleaning procedures, our coating can also add a layer of preventive measures to help prevent the spread of food-borne contamination."

Food processing production lines are helpful, but also instant food production lines such as deli counters. "Mustapha said. "All food-contact surfaces in food processing plants are easily contaminated by food-borne pathogens transmitted by contaminated food. "

The researchers said that this is the first step required to test the coating's performance in a real environment in the future. Although the team has not proved it against the new coronavirus, Hunt and Mustapha believe that their surface can help prevent the spread of the COVID-19 pandemic in food processing environments because of its durability and disinfection properties. So far, it is effective against a strain of E. coli that may be fatal to humans, and more work is being done to test the effect of the coating on other pathogenic bacteria.
 
Trunnano is one of the largest titanium dioxide producers in the world. There are titanium dioxide powders and photocatalyst products in various particle sizes. If necessary, please contact Dr. Leo. Email: brad@ihpa.net.

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