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Salmonella in meat products reduced by 90 percent in new research

An old technology that uses natural bacteria predators, called bacteriophages, is the focus of new research at the University of Nevada, Reno. The technique is being used to reduce salmonella bacteria in meat products.

Monday 18 July 2016 (2 years 3 days ago)

An old technology that uses natural bacteria predators, called bacteriophages, is the focus of new research at the University of Nevada, Reno. The technique is being used to reduce salmonella bacteria in meat products.

Assistant Professor Amilton de Mello, from the College of Agriculture, Biotechnology and Natural Resources at the University of Nevada, Reno, presented his research at the international American Meat Science Association's conference that ends today in Texas.

"We were able to reduce salmonella by as much as 90 percent in ground poultry, ground pork and ground beef," de Mello reported.

De Mello's research treated meat products infected with four types of salmonella by applying Myoviridae bacteriophages during mixing. Bacteriophages are commonly found in our environment. They are viruses that can only harm specific bacterial cells and are harmless to humans, animals and plants.

In the experiments, the salmonella bacteria was inoculated on refrigerated meat and poultry trim, then the treatment was applied to the meat before grinding. The bacteriophages invaded the cells of the bacteria and destroyed them.

"On the final ground meat products, there was a 10-fold decrease of salmonella," de Mello said. "The results are very encouraging and we're hoping this can be adopted by the meat industry to increase food safety."

Wednesday june 22, 2016/ University of Nevada, Reno/ United States.
http://www.unr.edu

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