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Patent Granted For Egg Pasteurization Technique

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The U.S. Patent and Trademark Office has granted a patent to a novel technique and device for pasteurizing eggs developed by engineers at the U.S. Department of Energy’s Princeton Plasma Physics Laboratory (PPPL) and the U.S. Department of Agriculture (USDA). The award marks the 27th patent granted to PPPL inventors since 1994.

Source: http://phys.org/news/2014-12-technique-pasteurizing-eggs-patent.html

“This is a unique experience for me,” said Chris Brunkhorst, an expert in radio frequency (RF) heating at PPPL. “It’s the first time I’ve had a patent awarded.” Brunkhorst holds the patent with David Geveke, research chemical engineer and lead scientist at the USDA Agricultural Research Service in Wyndmoor, Pa., and Andrew Bigley, an engineering technician recently retired from the USDA.

The three inventors will share in any revenue that comes from licensing the invention. Princeton University holds joint rights to the technology with the USDA, which is in talks to license it to an industrial user.

The invention uses RF energy to transmit heat through the shell and into the yolk while the egg rotates. Streams of cool water simultaneously flow over the egg to protect the delicate white. Researchers then bathe the egg in hot water to complete the pasteurization process.

The invention can pasteurize shell eggs in one-third the time that current methods require, according to Geveke. And unlike such methods, which heat the eggs in water for about an hour, the invention doesn’t affect the appearance of the egg white, he said. The aim is to produce a pasteurized egg “that is hardly discernible from a fresh, nonpasteurized egg,” he noted.

Adam Cohen, deputy director for operations at PPPL, applauded the patent as an example of the high quality of the work of Laboratory staffers and encouraged researchers, engineers and technicians to disclose their inventions to the PPPL Office of Technology Transfer. “People here are incredibly creative and inventive,” Cohen said, “and the process of finding out where their discoveries may lead starts with disclosure.”

Read article HERE | SOURCE: Princeton Plasma Physics Laboratory

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