RSS
热门关键字:  www xnxx com A  tinyurl com  bjq  www  food safety
当前位置 :| 主页>新闻>

Scientists Crack the Code on How to Un-Boil a Hard-Boiled Egg

来源:ABCNews 作者: 时间:2015-01-27 Tag: 点击:

Scientists have cracked the code for un-boiling hard-boiled egg whites and it could have huge implications for cancer research.

Egg whites are made of proteins that start out with a certain shape, explained Gregory Weiss, a professor of chemistry and molecular biology at the University of California, Irvine, and the experiment’s lead researcher.

“Once you boil them, the proteins stay intact but they change their conformation,” he said.

This is a big deal because even chemists assumed once you hard-boiled an egg it was game over, Weiss explained. But his team has been able to reverse the process so that proteins can be recovered and reused.

In a sort of scientific magic trick, Weiss and his team first peeled the egg whites away from the yolks and soaked them in a chemical called urea to dissolve them.

 

PHOTO: Scientists from the University of California Irvine use a vortex fluid device to spin hardboiled yolks back to their original shape.

They then placed them in a device called a “vortex fluid machine,” which spins the whites at high speeds to restore them to their original state.

 

PHOTO: Scientists from University of California, Irvine first dissolve the hard boiled egg whites in chemicals.

The process is complete in minutes rather than days, Weiss said, and this is good news for those who use similar proteins in cancer research.

Certain proteins are quite useful in the lab but they tend to mis-fold into the wrong format, rendering a large portion of them useless. This new method is a quick and simple way to coax them back into their initial forms and prevent them from clumping up inside lab instruments.

“We are already using it in our cancer research here,” Weiss said, adding that he hoped the technique will be used on a larger scale within the next few years.

However, don’t expect this discovery to revolutionize fine dining. While it’s certainly possible to reverse a hard-boiled yolk, Weiss said they haven’t yet bothered trying. And, he said, it’s also theoretically possible to un-cook a chicken but the process would make it taste awful.


最新评论共有 1 位网友发表了评论
发表评论
评论内容:不能超过250字,需审核,请自觉遵守互联网相关政策法规。
用户名: 密码:
匿名?
注册