Sugar acid

A Sugar acid or acidic sugar is a monosaccharide with a carboxyl group at one end or both ends of its chain.[1]

Main classes of sugar acids include:

* Aldonic acids, in which the aldehyde group (−CHO) located at the initial end (position 1) of an aldose is oxidized.
* Ulosonic acids, in which the −CH2(OH) group at the initial end of a 2-ketose is oxidized creating an α-ketoacid.
* Uronic acids, in which the −CH2(OH) group at the terminal end of an aldose or ketose is oxidized.
* Aldaric acids, in which both ends (−CHO and −CH2(OH)) of an aldose are oxidized.

Aldonic acid

An ulosonic acid; specifically, 3-Deoxy-D-manno-oct-2-ulosonic acid

Uronic acid

Aldaric acid

|
|
|

## Examples

Examples of sugar acids include:

* Aldonic acids
* Glyceric acid (3C)
* Xylonic acid (5C)
* Gluconic acid (6C)
* Ascorbic acid[2] (6C, unsaturated lactone)
* Ulosonic acids
* Neuraminic acid (5-amino-3,5-dideoxy-D-glycero-D-galacto-non-2-ulosonic acid)
* Ketodeoxyoctulosonic acid (KDO or 3-deoxy-D-manno-oct-2-ulosonic acid)
* Uronic acids
* Glucuronic acid (6C)
* Galacturonic acid (6C)
* Iduronic acid (6C)
* Aldaric acids
* Tartaric acid (4C)
* meso-Galactaric acid (Mucic acid) (6C)
* D-Glucaric acid (Saccharic acid) (6C)

Ascorbic acid (Vitamin C)

The β-D form of glucuronic acid

|

## References

1. ↑ Robyt, J.F. (1998). Essentials of carbohydrate chemistry. New York: Springer. ISBN 0-387-94951-8. https://books.google.com/books?id=l4NfU7_sAZoC&q="b.+Aldonic+acids"&pg=PA366.
2. ↑ Davies Michael B.; Austin John; Partridge David A. (1991). Vitamin C: Its Chemistry and Biochemistry. The Royal Society of Chemistry. p. 48. ISBN 0-85186-333-7.

## External links

* Sugar+Acids at the US National Library of Medicine Medical Subject Headings (MeSH)

0.00

(0 votes)

Original source: https://en.wikipedia.org/wiki/Sugar acid. Read more

|

Retrieved from "https://handwiki.org/wiki/index.php?title=Chemistry:Sugar_acid&oldid=369106"