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Dictionary » R » Reducing sugar

Reducing sugar

Definition

noun

A sugar that serves as a reducing agent due to its free aldehyde or ketone functional groups in its molecular structure.


Supplement

Examples are glucose, fructose, glyceraldehydes, lactose, arabinose and maltose, except for sucrose.

Benedict’s reaction is used to determine the presence of a reducing sugar, i.e. when a mixture contains sugar it will turn green/orange/red after this test – an indication that the reducing sugar is present in the mixture.


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Re: fructose as a monomer for a polysaccharide

... is that the anomeric carbon (the carbon adjacent to the oxygen in the sugar ring is the one that makes the ketone group in the open ring form and ... oxygen of the ketone is the oxygen in the ring) is bound up into a non-reducing disaccharide as is the case sucrose. This anomeric carbon has the ...

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by daniel.kurz
Tue Nov 22, 2011 11:44 pm
 
Forum: Cell Biology
Topic: fructose as a monomer for a polysaccharide
Replies: 9
Views: 4389

fructose as a monomer for a polysaccharide

agree, the fructose is able of some rearrangement, so it is reducing sugar

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by JackBean
Tue Nov 22, 2011 9:16 pm
 
Forum: Cell Biology
Topic: fructose as a monomer for a polysaccharide
Replies: 9
Views: 4389

Re:

... one sucrose. Fructose is what carbohydrate chemists call "non-reducing" while sugars like glucose are "reducing" sugars. We can also use that nomenclature with ...

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by Maatomaat
Tue Nov 22, 2011 11:57 am
 
Forum: Cell Biology
Topic: fructose as a monomer for a polysaccharide
Replies: 9
Views: 4389

Re: fructose as a monomer for a polysaccharide

Fructose is what carbohydrate chemists call "non-reducing" Fructose is a reducing sugar (ketone group)... That's news to me. Please show me this reducing ketone group? please see ...

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by Maatomaat
Tue Nov 22, 2011 11:38 am
 
Forum: Cell Biology
Topic: fructose as a monomer for a polysaccharide
Replies: 9
Views: 4389

Re: fructose as a monomer for a polysaccharide

Fructose is what carbohydrate chemists call "non-reducing" Fructose is a reducing sugar (ketone group)... That's news to me. Please show me this reducing ketone group?

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by daniel.kurz
Mon Nov 21, 2011 6:55 pm
 
Forum: Cell Biology
Topic: fructose as a monomer for a polysaccharide
Replies: 9
Views: 4389
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