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I looked up online to find which type of carbohydrate is found in egg white, but the only information I found is the quantity of sugar. I would like to know the exact name of the carbohydrate found in the egg white in order to draw the sugar molecule.

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  • $\begingroup$ It's all in a glycosylated protein (as noted in the answer), the composition of which is not homogeneous. But I found: "MALDI MS of the N-glycans released from α-ovomucin by PNGase F revealed that the most abundant glycan structure is a bisected type of composition GlcNAc(6)Man(3)." (uniprot.org/citations/21484392) $\endgroup$ – VonBeche Nov 7 '16 at 9:02
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The one I found is Ovomucin,though it's not a pure carbohydrate.

Ovomucin is a highly glycosylated protein and approximately 33% of ovomucin is made up of carbohydrates.

Nutritional Values of Egg White Proteins paragraph of http://ps.oxfordjournals.org/content/92/12/3292.full

So you can see it's mostly a protein.

Ovomucin is a trypsin inhibitor found in raw egg white.

Ovomucin is responsible for the gel properties of fresh egg white and is believed to be involved in egg white thinning. Ovomucin is composed of two subunits:

  1. α-ovomucin - carbohydrate-poor with a molecular mass of 254kDa

  2. β-ovomucin - carbohydrate-rich with a molecular mass of 400-610kDa

Souce: Wikipedia

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  • $\begingroup$ I'll add more info as soon as I find some. $\endgroup$ – Tyto alba Oct 7 '16 at 20:26
  • $\begingroup$ I did some research about the ovomucin but I didn't found it molecular stucture... Have you any idea about the ccomposition of the sugar? $\endgroup$ – Matt Oct 7 '16 at 21:10
  • $\begingroup$ No sorry about that. $\endgroup$ – Tyto alba Oct 12 '16 at 8:39

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