Ultra violet light technology can kill food-borne pathogens
Posted: 07/30/2015 05:50 PM IST
According to a study published in the International Journal of Food Microbiology, it was revealed that Ultraviolet light technology can kill food borne pathogens on the surface of fruits.
After learning from organic farmers and food processors about a lack of sanitising options, Sablani and his colleagues decided to looked into alternatives and decided to explore Ultraviolet C (UVC) light. They found that UVC light, which cannot penetrate opaque, solid objects, can be effective in sanitizing surfaces.
Sablani and his colleagues exposed apples, pears, strawberries, raspberries and cantaloupe to different doses of UVC to determine how effective the pathogen-killing light was against a mix of strains of E coli and listeria.
They found that the light can inactivate up to 99.9 per cent of pathogens on apples and pears. However, listeria was more UVC resistant than E coli. The study was published in the International Journal of Food Microbiology.
By Lizitha
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