Egg White

  

Copyright © Philip M. Parker, INSEAD. Terms of Use.

Egg White

Definition: Egg White

Egg White

Noun

1. The white of an egg; the nutritive and protective gelatinous substance surrounding the yolk consisting mainly of albumin dissolved in water.

Source: WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved.
 

Synonyms: Egg White

Synonyms: albumen (n), ovalbumin (n). (additional references)

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Specialty Definition: Egg white

(From Wikipedia, the free Encyclopedia)

The egg white is a clear liquid (also called albumen, or ovalbumin) contained within a bird's egg.It consists mainly of about 10% proteins dissolved in water. Its primary purpose is to protect the egg yolk and also to provide additional nutrition for the growth of the embryonic chick, as it is rich in proteins and is of high nutritional value. Unlike the egg yolk, it contains little fat.

It is often used and separated for cooking (for meringues, soufflés, and some omelettes), which is where it derives its name from: when egg white is beaten it turns white.

In schools it often used to teach pupils how to test for protein using Biurets reagent.

What happens to egg white as it cooks

The proteins in egg white (like all proteins) are made of long chains of amino acids. (like beads on a string). In a raw egg, these strings are ravelled up in a tangled compact mass.There are bonds between the amino acids within each protein that stop the ball from unravelling. As the egg cooks the heat causes the bonds within the proteins to break. Each ball of protein unfolds and tangles up with the other protein balls. Bonds form between the amino acids on different proteins setting the albumen into a rubbery gel. The process happens more rapidly in salt water, which is at a higher temperature when it boils.

What happens to an egg white as it is beaten

The protein partially unravels and forms a good foaming agent. A foam is formed by the protein forming a stable film around the included air.Studies show that the best foam forms when the unraveling of the protein is only partial.Overbeating egg white destabalises the foam by completely unravelling the protein molecules. The protein is elastic, so when the egg white is cooked, and the air expands, the white stretches then sets in the expanded position.

Use of a copper bowl

Many cooks recommend using a copper bowl to beat egg white. This has the effect of making it take longer to form the foam, but leads to a much more stable foam.This probably because the copper atoms form a complex with the conalbumin protein which makes it difficult to unravel.This means that it takes around twice the time to get a good foam, but very much more difficult to overbeat. (The danger of overbeating may be the reason many cooks recommend beating by hand rather than use an electric whisk)

The one possible drawback of using a copper bowl is the toxicity of copper. However the amount incorporated into the white is likely to be far to small to cause ill effect.

Cream of Tartar

Cream of tartar (potassium bitartrate) is an acidic salt can be used to change the pH of the egg white to an acidic range of around 3-4. This has the effect of stabilising the foam, and is therefore a good alternative to using a copper bowl. Cream of tartar should not be used if a copper bowl is used, because it can react with the copper and force more of it into solution (acids react with metals, in general), thus increasing the toxic effect.

Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "Egg white."

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Crosswords: Egg White

English words defined with "egg white": Albugineous, albumendeviled egg, divinity, divinity fudgeGlairHalones, hard-boiled eggmeringue kissOvalbumen, ovalbuminpink ladystuffed eggwoolly adelgid. (references)
Specialty definitions using "egg white": ConalbuminDeath from Strange CausesEGG BREAKER, egg liqueur / advocaat / avocat / AdvokatOvomucin. (references)

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Commercial Usage: Egg White

DomainTitle

Books

  • Proteins in Vacuo Molecular Dynamics Studies of Hen Egg White Lysozyme Submitted to Unfolding and Relaxation Conditions (Comprehensive Summaries of up (reference)

    (more book examples)

Source: compiled by the editor from various references; see credits.

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Image Slideshow: Egg White

Illustrations:
Egg White

More images...

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Frequency of Internet Keywords: Egg White

The following statistics estimate the number of searches per day across the major English-language search engines as identified by various trade publications. Hyperlinks lead to commercial use of the expression at Amazon.com.
 
ExpressionFrequency
per Day

egg white

125

egg white protein

39

calorie egg white

25

protein in egg white

18

powdered egg white

12

dried egg white

11

egg white powder

9

egg white protein powder

3

boiled egg white

2

beating egg white

2
Source: compiled by the editor from various references; see credits.

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Modern Translations: Egg White

Language Translations for "egg white"; alternative meanings/domain in parentheses.

Albanian

  

e bardha e vazës. (various references)

   

Chinese 

  

蛋白 (albumen, protein). (various references)

   

Czech

  

bílek (albumen, white). (various references)

   

Danish

  

ovalbumin (ovalbumin), æggehvide (ovalbumin, protein, proteins), ægalbumin (ovalbumin). (various references)

   

Dutch

  

ovoalbumine (ovalbumin), ovalbumine (ovalbumin), kippeneiwit (ovalbumin), kippeeiwit (ovalbumin). (various references)

   

French

  

ovalbumine, blanc d'oeuf. (various references)

   

German

  

eiweiß (albumen, albumin, protein, proteins, white, white of egg), Eieralbumin (ovalbumin), Eialbumin (ovalbumin), Ovalbumin (ovalbumin). (various references)

   

Greek 

  

ασπράδι αυγού (albumen, ovalbumin), αυγοαλβουμίνη (ovalbumin). (various references)

   

Hungarian

  

tojásfehérje (albumen, glair, white of egg). (various references)

   

Italian

  

ovoalbumina (ovalbumin), bianco d'uovo (ovalbumin). (various references)

   

Japanese Kanji 

  

蛋白 (protein). (various references)

   

Japanese Katakana 

  

た"ぱく (candid, frank, indifferent, ingenuous, light, plain, protein, simple). (various references)

   

Pig Latin

  

eggay itewhay.(various references)

   

Portuguese

  

clara do ovo (ovalbumin), albumina do ovo (ovalbumin). (various references)

   

Russian 

  

яичный белок (egg-white, glair). (various references)

   

Serbo-Croatian

  

belance (albumen, glair). (various references)

   

Spanish

  

ovoalbúmina (ovalbumin), huevo de color blanco, clara de huevo (albumen, ovalbumin), clara (bright period, culling, thinning, white). (various references)

   

Swedish

  

äggvita (albumen, albumin, white of egg). (various references)

   

Turkish

  

yumurta akı (albumen, albumin, glair, white of egg). (various references)

Source: compiled by the editor from various translation references.

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Anagrams: Egg White

Scrabble® Enable2K-Verified Anagrams

Words within the letters "e-e-g-g-h-i-t-w"

-2 letters: weight.

-3 letters: eight, gighe, weigh, white, wight, withe.

-4 letters: ghee, thee, thew, twee, twig, weet, whee, whet, whig, whit, wite, with.

-5 letters: egg, eth, ewe, gee, get, ghi, gie, gig, git, het, hew, hie, hit, tee, teg, tew, the, tie, wee, wet, wig, wit.

 Words containing the letters "e-e-g-g-h-i-t-w"
 

+5 letters: overweighting.

Source: compiled by the editor from various references; see credits.

SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro.

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Alternative Orthography: Egg White


Hexadecimal (or equivalents, 770AD-1900s) (references)

45 67 67      57 68 69 74 65

Leonardo da Vinci (1452-1519; backwards) (references)

    

Binary Code (1918-1938, probably earlier) (references)

01000101 01100111 01100111 00100000 01010111 01101000 01101001 01110100 01100101

HTML Code (1990) (references)

&#69 &#103 &#103 &#32 &#87 &#104 &#105 &#116 &#101

ISO 10646 (1991-1993) (references)

0045 0067 0067      0057 0068 0069 0074 0065

Encryption (beginner's substitution cypher): (references)

39737325774758671

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INDEX

1. Definition
2. Synonyms
3. Crosswords
4. Usage: Commercial
5. Images: Slideshow
6. Expressions: Internet
7. Translations: Modern
8. Anagrams
9. Orthography
10. Bibliography


  

Copyright © Philip M. Parker, INSEAD. Terms of Use.