Photodisinfection shown to be highly effective against key food-borne pathogens
Ondine Biomedical , a Canadian life sciences company , reported that photodisinfection being developed for food processing demonstrated high efficacy against key food-borne pathogens . Results of the proof-of-concept study confirmed 4-5 log ( up to 99.999 %) elimination of pathogens commonly found on hard surfaces in meat processing facilities , as well as those directly located on fresh-cut chicken , beef , and pork meat .
Bacterial contamination in the meat industry significantly impacts consumers , workers , animals , community well-being , and industry profitability . Consuming meat contaminated with harmful bacteria can cause illness and death , with over 400,000 people globally dying each year from eating contaminated food . This damages public health and leads to loss of consumer confidence in meat products which can significantly impact profitability across the meat industry .
Conducted in collaboration with Chinook Contract Research , the Ondine Biomedical program identified four food-safe photosensitizers – compounds which eliminate pathogens when exposed to a specific wavelength of light . The photosensitizers were screened against the bacterial organisms Salmonella enterica ( Salmonella ) and MRSA ( Methicillin-resistant Staphylococcus aureus ), grown and tested as biofilms . Results showed that the photodisinfection process was able to achieve complete elimination of all Salmonella enterica biofilms (> 99.999 %), and a 99.999 % ( 5-log ) reduction of MRSA biofilms in several different food safety models
1 https : / www . who . int / news-room / fact-sheets / detail / food-safety
2
> 5 log10 CFU ( colony forming units ) reduction .
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