Researchers from Iowa State University have developed a novel technique to detect salmonella, bacteria that causes foodborne illnesses.
The process, developed by Byron Brehm-Stecher, assistant professor in food science and human nutrition, and his graduate student Bledar Bisha, begins with testing the food, in most cases produce, with a strip of adhesive tape.
AdvertisementThe tape is applied to the produce, then carefully removed, taking a sample of whatever is on the skin of the produce.
That sample is then put on a slide and soaked in a special warm, soapy mixture that contains a genetic marker that binds with salmonella and gives off a fluorescent glow when viewed under an ultraviolet light.
The approach called Fluorescent In-Situ Hybridization, or FISH can tell investigators if the produce is contaminated with salmonella in about two hours.
"This method is rapid, it's easy, and it's cheap," said Brehm-Stecher.
Presently, the methods of detecting salmonella take one to seven days.
"I think this will be good tool in outbreak investigation and routine surveillance especially since all you need is tape, a heat block, a small centrifuge and a fluorescence microscope," said Brehm-Stecher.
"It has the potential to be very portable," he added.
The study is published in the journal Applied and Environmental Microbiology.
PCaffeine in Energy Drink Triggers Death of Young Girl on Dance Floor 'Crystal Ball' For Personalized Cancer Treatment Developed M
You May Also Like