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New UGA invention effectively kills foodborne pathogens in minutes
Date:6/24/2008

University of Georgia researchers have developed an effective technology for reducing contamination of dangerous bacteria on food. The new antimicrobial wash rapidly kills Salmonella and E. coli O157:H7 on foods ranging from fragile lettuce to tomatoes, fruits, poultry products and meats. It is made from inexpensive and readily available ingredients that are recognized as safe by the U.S. Food and Drug Administration.

The new technology, which has commercial application for the produce, poultry, meat and egg processing industries, is available for licensing from the University of Georgia Research Foundation, Inc., which has filed a patent application on the new technology.

The Centers for Disease Control and Prevention estimates that, in the U.S. alone, foodborne pathogens are responsible for 76 million illnesses every year. Of the people affected by those illnesses, 300,000 are hospitalized and more than 5,000 die. These widespread outbreaks of food-borne illnesses are attributed, in part, to the fast-paced distribution of foods across the nation. Recently, raw tomatoes caused an outbreak of salmonellosis that sickened more than 300 people in at least 28 states and Canada.

Currently, a chlorine wash is frequently used in a variety of ways to reduce harmful bacteria levels on vegetables, fruits and poultry, but because of chlorine's sensitivity to food components and extraneous materials released in chlorinated water treatments, many bacteria survive. Chlorine is toxic at high concentrations, may produce off-flavors and undesirable appearance of certain food products, and it can only be used in conjunction with specialized equipment and trained personnel. In addition, chlorine may be harmful to the environment.

"We can't rely on chlorine to eliminate pathogens on foods," said Michael Doyle, one of the new technology's inventors and director of UGA's Center for Food Safety. "This new technology is effective, safe for con
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Contact: Kim Osborne
kosborne@uga.edu
706-583-0913
University of Georgia
Source:Eurekalert

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