homehome Home chatchat Notifications


New process 'unboils' egg. The process could save biotech billions

American and Australian researchers have figured out how to unboil an egg, devising a method that unfolds tangled proteins. The process could prove to be extremely valuable in the biotech industry; costs could be dramatically cut for cancer treatments, food production and other research. So, is unboil a word now?

Tibi Puiu
January 26, 2015 @ 7:38 am

share Share

American and Australian researchers have figured out how to unboil a hen egg, devising a method that unfolds tangled proteins. The process could prove to be extremely valuable in the biotech industry; costs could be dramatically cut for cancer treatments, food production and other research. So, is unboil a word now?

boiling egg

Image: Veronique Beranger | Getty Images

If you ever cooked an egg, you know that it’s made out of egg white and yolk. Egg whites are a low-calorie, fat-free food. They contain the bulk of the egg’s protein, while the yolks carry the cholesterol, the fat and saturated fat of the egg, but also important nutrients like essential fatty acids. When the whites are cooked, the proteins start to unfold under the thermal pressure, then fold again into a new tighter, more tangled structure – from clear and slimy, to white and gummy.

Researchers at the University of California, Irvine, and Flinders University in Australia now report a novel process that pulls apart these newly tangled proteins, allowing them to refold to their original structure. The team boiled eggs for 20 minutes at 194 degrees Fahrenheit then added urea to untangle the knotted proteins into liquid proteins known as lysozymes. Yes, urea is one of the main ingredients found in urine. I don’t know about you, but this unboiled egg doesn’t sound safe to eat again. The liquid was then  processed in a  machine called a vortex fluidic device, developed by Colin Raston and his colleagues at Flinders University in Australia, which causes the tangled protein molecules to shear and refold normally.

“It’s not so much that we’re interested in processing the eggs; that’s just demonstrating how powerful this process is. 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,” said Gregory Weiss, a professor of chemistry and molecular biology and biochemistry at the University of California, Irvine.

Of course, there are other methods already available that untagle proteins, but these take days to process, while the “unboiled egg” method only takes a few minutes. Since it’s speeding the process up by a factor of thousands, the $160 billion biotech industry could save a great deal of money, which should translate in savings for consumers. According to Science Alert: “pharmaceutical companies commonly produce cancer antibodies for treatment using hamster ovary cells, which are expensive, but valuable, as they don’t often misfold proteins. The same goes for industrial cheese makers and farmers who need these kinds of proteins to drive the fermentation process. Using this new technique, scientists could instead use proteins extracted super-cheaply from yeast and E. coli bacteria and restore them to a useable form.

“I can’t predict how much money it will save, but I can this will save a ton of time, and time is money,” said Weiss.

The findings were published in the journal ChemBioChem

 

 

 

 

 

 

 

 

 

share Share

How Hot is the Moon? A New NASA Mission is About to Find Out

Understanding how heat moves through the lunar regolith can help scientists understand how the Moon's interior formed.

This 5,500-year-old Kish tablet is the oldest written document

Beer, goats, and grains: here's what the oldest document reveals.

A Huge, Lazy Black Hole Is Redefining the Early Universe

Astronomers using the James Webb Space Telescope have discovered a massive, dormant black hole from just 800 million years after the Big Bang.

Did Columbus Bring Syphilis to Europe? Ancient DNA Suggests So

A new study pinpoints the origin of the STD to South America.

The Magnetic North Pole Has Shifted Again. Here’s Why It Matters

The magnetic North pole is now closer to Siberia than it is to Canada, and scientists aren't sure why.

For better or worse, machine learning is shaping biology research

Machine learning tools can increase the pace of biology research and open the door to new research questions, but the benefits don’t come without risks.

This Babylonian Student's 4,000-Year-Old Math Blunder Is Still Relatable Today

More than memorializing a math mistake, stone tablets show just how advanced the Babylonians were in their time.

Sixty Years Ago, We Nearly Wiped Out Bed Bugs. Then, They Started Changing

Driven to the brink of extinction, bed bugs adapted—and now pesticides are almost useless against them.

LG’s $60,000 Transparent TV Is So Luxe It’s Practically Invisible

This TV screen vanishes at the push of a button.

Couple Finds Giant Teeth in Backyard Belonging to 13,000-year-old Mastodon

A New York couple stumble upon an ancient mastodon fossil beneath their lawn.