Primary Country (Mandatory)

United States

Other Country (Optional)

Set News Language for United States

Primary Language (Mandatory)
English
Other Language[s] (Optional)
No other language available

Set News Language for World

Primary Language (Mandatory)
English
Other Language(s) (Optional)

Set News Source for United States

Primary Source (Mandatory)
CNN
Other Source[s] (Optional)

Set News Source for World

Primary Source (Mandatory)
AajTak
Other Source(s) (Optional)
  • Countries
    • India
    • United States
    • Qatar
    • Germany
    • China
    • Canada
    • World
  • Categories
    • National
    • International
    • Business
    • Entertainment
    • Sports
    • Special
    • All Categories
  • Available Languages for United States
    • English
  • All Languages
    • English
    • Hindi
    • Arabic
    • German
    • Chinese
    • French
  • Sources
    • India
      • AajTak
      • NDTV India
      • The Hindu
      • India Today
      • Zee News
      • NDTV
      • BBC
      • The Wire
      • News18
      • News 24
      • The Quint
      • ABP News
      • Zee News
      • News 24
    • United States
      • CNN
      • Fox News
      • Al Jazeera
      • CBSN
      • NY Post
      • Voice of America
      • The New York Times
      • HuffPost
      • ABC News
      • Newsy
    • Qatar
      • Al Jazeera
      • Al Arab
      • The Peninsula
      • Gulf Times
      • Al Sharq
      • Qatar Tribune
      • Al Raya
      • Lusail
    • Germany
      • DW
      • ZDF
      • ProSieben
      • RTL
      • n-tv
      • Die Welt
      • Süddeutsche Zeitung
      • Frankfurter Rundschau
    • China
      • China Daily
      • BBC
      • The New York Times
      • Voice of America
      • Beijing Daily
      • The Epoch Times
      • Ta Kung Pao
      • Xinmin Evening News
    • Canada
      • CBC
      • Radio-Canada
      • CTV
      • TVA Nouvelles
      • Le Journal de Montréal
      • Global News
      • BNN Bloomberg
      • Métro
LOVEVOOK Women Purses and bags Buy Now
Islamic Long Headscarf Chiffon Shawl Buy Now
DEARMAY Gold Bracelets Set Buy Now
Women's Boho Palazzo Pants Buy Now
Women's Crochet Summer Top Buy Now
KALIYADI Polarized Sunglasses Buy Now
Men's Slim Fit Dress Pant Buy Now
ELEMIS Pro-Collagen Overnight Matrix Buy Now
Blackview MP60 Mini PC Intel Buy Now
Ultrasonic Pest & Insect Repeller Buy Now
Pioneer Men's Slim Fit Cardigan Sweater Buy Now
Real Essentials: UV Sun Shirt Buy Now
Monitech Digital Camera for Photography 4K Buy Now
The Ultimate Fitness Journal Buy Now
CQR Mens Tactical Pants Buy Now
COOFANDY Men's Slim Fit Knit Sweater Buy Now
Into the AM Men's T-Shirt Buy Now
Hanes EcoSmart Fleece Hoodie Buy Now
BALEAF Fleece-Lined Winter Leggings Buy Now
Anne Klein AK/3702 Watch Buy Now
MoreBack to News Headlines
煮鸡蛋时,为什么有的蛋黄表面会变绿?

煮鸡蛋时,为什么有的蛋黄表面会变绿?

China Daily
Wednesday, September 8, 2021 4:42 AM GMT

细心的人可能会发现,煮鸡蛋的蛋黄表面有时会呈灰绿色。这是什么原因?这样的鸡蛋还能吃吗?

鸡蛋的吃法有很多,水煮蛋是最常见的一种。水煮蛋烹饪简单,便于食用,高蛋白低热量,是一种健康营养的美味。细心的人可能会发现,煮鸡蛋的蛋黄表面有时会呈灰绿色。这是什么原因?这样的鸡蛋还能吃吗? Some hard-boiled eggs have a gray or green ring of discoloration between the white and the yolk, which might prompt you to wonder if the chicken in question had some exotic disease or whether the egg is safe to consume.一些煮老了的鸡蛋蛋黄和蛋白相接触的一层表面会成灰色或绿色,有人可能会因此怀疑母鸡得病了,或者鸡蛋是否可以安全食用。 Good news: It is. The gray coloring appears due to a chemical reaction when boiling the egg. Proteins in the egg are held together by sulfur, which breaks down in heat and becomes hydrogen sulfide. Iron in the egg yolk can alter it further so it becomes ferrous (iron) sulfide on the surface. Too much iron in your water can produce a similar result.好消息:可以吃。煮鸡蛋时,蛋黄表面由于化学反应而呈现灰色。鸡蛋的蛋白质中含有硫元素,高温下蛋白质分解形成硫化氢。蛋黄中的铁元素会进一步与之发生反应,使其表面形成硫化亚铁。水中含铁过多也会导致类似的结果。 What does this have to do with the color? It’s the iron sulfide that creates the gray (or green) rings around the egg, and that’s usually a result of overcooking it. According to Sauder’s Eggs, a crumbly, dry yolk takes about 14 minutes in boiling water. One way to avoid overcooking is to dip the cooked eggs in an ice bath immediately afterward.那这和蛋黄表面的颜色有什么关系呢?正是硫化亚铁让蛋黄表面呈现灰(绿)色,这通常是因为鸡蛋煮老了。据“索德鸡蛋”公司称,一个易碎的干蛋黄在沸水中大约需要煮14分钟。为避免过度烹煮,可以将煮熟的鸡蛋立即浸泡在冰水中。
Read full story on China Daily
Share this story on:-
Run 3 Space | Play Space Running GamePlay Run 3, the ultimate space tunnel running game with 300+ challenging levels!Adv.
Traffic Jam 3D | Online Racing GameTraffic Jam 3D is a game where you’ll be driving through heavy traffic.Adv.
Duck Hunt | Play Old Classic GamePlay the classic 1984 light gun shooter game Duck Hunt on your browser.Adv.
More Related News
Parking Slot | Free Parking GamePlay Parking Slot, the best online 3D car driving and parking game.Adv.
Slope Ball Run - Play OnlineSlope Game takes you on an exciting journey of a ball on special paths.Adv.
© 2008 - 2025 Webjosh  |  News Archive  |  Privacy Policy  |  Contact Us