Rapid separation and concentration of food-borne pathogens in food samples prior to quantification by viable-cell counting and real-time PCR.


Buoyant density gradient centrifugation has been used to separate bacteria from complex food matrices, as well as to remove compounds that inhibit rapid detection methods, such as PCR, and to prevent false-positive results due to DNA originating from dead cells. Applying a principle of buoyant density gradient centrifugation, we developed a method for rapid… (More)


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