Ketose
bonded oxygen.
In
Benedict's test.[3] Ketoses that are bound into glycosides, for example in the case of the fructose moiety of sucrose, are nonreducing sugars.[3]
Chemistry
Ketoses and aldoses can be chemically differentiated through
Lobry-de Bruyn-van Ekenstein transformation
.
Examples of ketoses
All ketoses listed here are 2-ketoses, in other words, the carbonyl group is on the second carbon atom from the end:
- Trioses: dihydroxyacetone
- Tetroses: erythrulose
- Pentoses: ribulose, xylulose
- Hexoses: fructose, psicose, sorbose, tagatose
- Heptoses: sedoheptulose
- Octoses: D-manno-octulose (the basis for KDO)
- Nonoses: D-glycero-D-galacto-nonulose (the basis for neuraminic acid)
References
- ISBN 978-3-527-31528-4.
- ISBN 0-387-94951-8.
- ^ ISBN 978-0495391449.
- ^ "Seliwanoff's Test". Harper College. Archived from the original on 2017-12-16. Retrieved 2011-07-10.