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Laser Tags Salmonella in Less Than a Day

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A new laser sensor identifies Salmonella bacteria grown from food samples in less than 24 hours, about three times faster than conventional methods.

“BARDOT allows us to detect Salmonella much earlier and more easily than current methods,” says Arun Bhunia, professor of food science at Purdue University, who collaborated with then-Purdue engineer Daniel Hirleman to create the machine. “This could ultimately help provide safer food to consumers.”

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