Fairfield Alumna Part of Research Team that Unboils Egg

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Fairfield Alumna Part of Research Team that Unboils Egg

UC Irvine and Australian chemists have figured out how to unboil egg whites – an innovation that could dramatically reduce costs for cancer treatments, food production and other segments of the $160 billion global biotechnology industry, according to findings published in the journal ChemBioChem .

Fairfield University alumna Mariam Iftikhar '11, who majored in biochemistry, is one of the paper's authors.

University of California, Irvine UCI News reports:

“Yes, we have invented a way to unboil a hen egg,” said Gregory Weiss, UCI professor of chemistry and molecular biology & biochemistry. “In our paper, we describe a device for pulling apart tangled proteins and allowing them to refold. We start with egg whites boiled for 20 minutes at 90 degrees Celsius and return a key protein in the egg to working order.”

Like many researchers, he has struggled to efficiently produce or recycle valuable molecular proteins that have a wide range of applications but which frequently “misfold” into structurally incorrect shapes when they are formed, rendering them useless.

“It’s not so much that we’re interested in processing the eggs; that’s just demonstrating how powerful this process is,” Weiss said. “The real problem is there are lots of cases of gummy proteins that you spend way too much time scraping off your test tubes, and you want some means of recovering that material.”

But older methods are expensive and time-consuming: The equivalent of dialysis at the molecular level must be done for about four days. “The new process takes minutes,” Weiss noted. “It speeds things up by a factor of thousands.”

To re-create a clear protein known as lysozyme once an egg has been boiled, he and his colleagues add a urea substance that chews away at the whites, liquefying the solid material. That’s half the process; at the molecular level, protein bits are still balled up into unusable masses. The scientists then employ a vortex fluid device, a high-powered machine designed by Professor Colin Raston’s laboratory at South Australia’s Flinders University. Shear stress within thin, microfluidic films is applied to those tiny pieces, forcing them back into untangled, proper form.

“This method … could transform industrial and research production of proteins,” the researchers write in ChemBioChem . For the full story, reported by UCI News, click here .

Last modified: 01-28-15 01:34 PM

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