Disaccharides

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 A disaccharide is a [[carbohydrate]] formed by the joining of two [[monosacharrides]] in a [[Condensation reaction.]]  
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A Diasaccharide, is a [[Carbohydrate|carbohydrate]] molecule, which consists of two units of [[Monosaccharide|monosaccharide]] molecules bound together by a [[Glycosidic bond|glycosidic bond]].<br>
  
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Some common examples of disaccharides are:
  
The combinations of common disaccharides are:
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*[[Sucrose]] (made up of the monosaccarides [[Glucose|glucose]]&nbsp;and [[Fructose|fructose]])
  
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*[[Lactose]] (made up of the monosaccarides [[Galactose|galactose]] and [[Glucose|glucose]])
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*[[Maltose]] (made up of 2 glucose monosaccarides)
  
{| width="250" border="1" cellpadding="1" cellspacing="1"
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In lactose and maltose, an alpha [[1,4 glycosidic bond|1,4-glycosidic bond]] is formed between the two monosaccharides, resulting from the linkage of the alpha-anomeric form of C-1 on one sugar and the [[Hydroxyl|hydroxyl]] oxygen on the C-4 of the other sugar<ref>Berg J., Tymoczko J and Stryer L. (2012) Biochemistry, 7th edition, New York: W.H. Freeman. pg 337</ref>.<br>
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| [[Maltose]]
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=== References  ===
| [[Glucose]] + [[Glucose]]
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|-
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<references /><br>
| [[Lactose]]
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| [[Glucose]] + [[Galactose]]
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|-
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| [[Sucrose]]
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| [[Glucose ]]+ [[Fructose]]
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|}
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Latest revision as of 11:30, 5 December 2017

A Diasaccharide, is a carbohydrate molecule, which consists of two units of monosaccharide molecules bound together by a glycosidic bond.

Some common examples of disaccharides are:

In lactose and maltose, an alpha 1,4-glycosidic bond is formed between the two monosaccharides, resulting from the linkage of the alpha-anomeric form of C-1 on one sugar and the hydroxyl oxygen on the C-4 of the other sugar[1].

References

  1. Berg J., Tymoczko J and Stryer L. (2012) Biochemistry, 7th edition, New York: W.H. Freeman. pg 337

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