Chemists find a way to unboil egg whites: Ability to quickly restore molecular proteins could slash biotechnology costs

Jan 27, 2015

Image Credit: Steve Zylius / UC Irvine

By Science Daily

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 today in the journal ChemBioChem.

“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.”


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