Scientists Determine New Way To Untangle Proteins By Unboiling an Egg
An anonymous reader sends word of this biotech breakthrough. "Univ. of California, Irvine (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 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 min at 90 C and return a key protein in the egg to working order.'"
That's pretty cool.
Imagine, a seasoning which turned your tough steak back from being shoe leather. :-P
Un-boiling an egg, the mind boggles.
I wonder what wacky applications chefs will come up with for this one. I can see some of the molecular gastronomy folks doing some odd things.
Lost at C:>. Found at C.
So much for using egg scrambling as analogue to hash functions.
Today I learned that cancer antibodies are often made in hamster ovaries. This may be, to date, the most I have ever thought about hamster ovaries.
Even Four-score Men and Four-score more, could not make Humpty Dumpty where he was before.
This is awesome... but more importantly, can they find a way to un-break a yolk?!
'Yes, we have invented a way to unboil a hen egg,
Let me know when they can unboil a rooster egg. Now that will be something.
There is no "I disagree" mod for a reason. Flamebait, Troll, and Overrated are not substitutes.
How is that different from pepsin, acid, and warmth in the stomach? Doesn't that do the same thing?
make it sunny side up in the first place, duh
"Lab journal: Is frank doing this on purpose? our new UC Irvine lab PhD is a fan of eggs. Eggs for brekky, eggs for lunch and tea, eggs at dinner...eggs. Normally im not one to complain about a fellow academics choice of meal but the flatulence is unbearable (worse than the 2002 methane leak and that says a lot.) After confronting him i got the usual, condescending american 'he who smelt it delt it huh buddy?' Yah, Nah. From now on im on a mission. I will un-boil his god damn eggs if its the last thing I ever do."
Good people go to bed earlier.
3 hours at boiling point. Smells like a sulfur mine and gives the worst smelling farts ever.
yeah, closed system, whatever.
Guess i really should have invested in the orange kid.
Perhaps at 10,000 ft? Who does that?
Is their lab at the bottom of death valley or are they using a pressure cooker?
Every time C vs F comes up, the C fans invariably point to C being vastly superior mainly because 100 C is water's boiling point.
French food scientist Herve This has beaten them to it, and has been known as "the man who unboiled an egg" for a few years now.
Yes it deals with Hen Egg-White protein, but it's about overcoming electrostatic barriers to crystallization. The first article involves a urea compound, the second a more esoteric complexed metal compound (Tellurium(VI)-Centred Polyoxotungstate). It's not a direct reference to the first link.
So they can restore the denaturated proteins to their original state... which basically is a step towards reviving the dead, however weird that sounds.... Undead chickens will take over.
You can't handle the truth.
Hard-cooked and soft-cooked eggs should be cooked in water just below boiling. Quoting the best selling cookbook in history, Betty Crocker's Cookbook:
2. Heat to boiling in saucepan; REMOVE FROM HEAT. Cover and let stand 18 minutes. Immediately cool briefly in cold water to prevent further cooking. Tap egg to crack shell; roll egg between hands to loosen shell, then peel.
(emphasis mine)
If you keep the water boiling, you get that nasty green film and the albumen becomes rubbery.
Couldn't you just have the chicken eat the egg and just lay a new one?
Unboiling an egg....
Man, if that doesn't win an ignobel prize, I don't know what will.
I realize they are only un-boiling an egg - but, this has disastrous consequences for entropy! When they finally un-crack an egg, does the universe suddenly cease to exist?
Reminds me of the chips that say "Oven Baked" on them. Let me know when they bake chips without an oven.
My God can beat up your God. Just kidding...don't take offense. I know there's no God.
The published findings link in the blurb is to the wrong paper, here is the link to the abstract for the actual article.
http://onlinelibrary.wiley.com/doi/10.1002/cbic.201402427/abstract
http://onlinelibrary.wiley.com...
Your hair look like poop, Bob! - Wanker.
http://onlinelibrary.wiley.com...
Your hair look like poop, Bob! - Wanker.
"That's great! But how do they taste?"
"That's the best part! We've already gotten calls from three of the airlines."
Can it turn your toast back into bread again?
has been doing this for a while.
unbuttering toast.
Lysozyme is a very robust protein found in hen egg whites. This process is going to be VERY difficult to apply to other proteins.
Even with purified lysozyme, you can boil it for extended amounts of time and it will refold on it's own just fine... in very short time scales. You can lyophilize it down to a powder, store it for years, add water... and it will refold and be active. (Lysozyme is an enzyme that degrades bacterial cell walls.)
I swear I saw an article about this playing on a tv in the background of a scene in "World War Z"
http://xkcd.com/1387/
Humpty-Dumpty reported to be put back together again.
I eat only the real part of complex carbohydrates.
By french scientist Hervé This :
http://observer.theguardian.com/foodmonthly/futureoffood/story/0,,1969723,00.html
Un-ringing a bell. Stay tuned.
"Win treats sysadmins better than users. Mac treats users better than sysadmins. Linux treats everyone like sysadmins."
What's that Skip? Austria =/= Australia; and on Australia Day of all days!
I'm impressed by the effort your chip producer goes to. When I buy chips it usually says "Oven Baked" on the bag, not the chips....
The text of this story is misleading. They didn't unboil an egg. They "unboiled" a single protein that happened to be isolated from egg white. First they denatured an enzyme, lysosyme, with heat -- not new. They they unfolded the resultant protein using urea (or something similar) -- standard procedure. Then they demonstrated how to get the protein to refold into its active conformation relatively quickly -- that is the new part. If you are a protein chemist this is interesting, otherwise not so much.