Disaccharides: Difference between revisions

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A disaccharide is a [[Carbohydrate|carbohydrate]] formed by the joining of two [[Monosaccharides|monosaccharides]] in a [[Condensation reaction|condensation reaction]].  
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>


The combinations of common disaccharides are:  
Some common examples of disaccharides are:  


{| width="250" border="1" cellpadding="1" cellspacing="1"
*[[Sucrose]] (made up of the monosaccarides [[Glucose|glucose]]&nbsp;and [[Fructose|fructose]])
|-
 
| [[Maltose]]  
*[[Lactose]] (made up of the monosaccarides [[Galactose|galactose]] and [[Glucose|glucose]])
| [[Glucose]] + [[Glucose]]
*[[Maltose]] (made up of 2 glucose monosaccarides)
|-
 
| [[Lactose]]  
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>
| [[Glucose]] + [[Galactose]]
 
|-
=== References  ===
| [[Sucrose]]  
 
| [[Glucose]] + [[Fructose]]
<references /><br>
|}

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