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03/04/2014

Laser system that identifies salmonella faster

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    The new system will identify the Salmonella bacteria on food within 24 hours--a significant reduction in time from the previous requirement of several days--which could help prevent tainted food from reaching consumers.
    The technology will detect the bacterial colonies grown on agar plates by scanning them with a red diode laser. Penetrating a bacterial colony will cause the red light to form a unique scatter pattern, which will then be compared to a library of images to identify the bacteria type.
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