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Sugar acid
Sugar acids are monosaccharides with a carboxyl group.
Main classes of sugar acids include:
* Aldonic acids, in which the aldehyde functional group of an aldose is oxidized
* Ulosonic acids, in which the first hydroxyl group of a 2-ketose is oxidised creating an α-ketoacid.
* Uronic acids, in which the terminal hydroxyl group of an aldose or ketose is oxidized
* Aldaric acids, in which both ends of an aldose are oxidized
==Examples==
Examples of sugar acids include:
* Aldonic acids
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* Glyceric acid (3C)
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* Xylonic acid (5C)
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* Gluconic acid (6C)
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* Ascorbic acid (6C, unsaturated lactone)
* Ulosonic acids
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* Neuraminic acid (5-amino-3,5-dideoxy-D-''glycero''-D-''galacto''-non-2-ulosonic acid)
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* Ketodeoxyoctulosonic acid (KDO or 3-deoxy-D-''manno''-oct-2-ulosonic acid)
* Uronic acids
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* Glucuronic acid (6C)
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* Galacturonic acid (6C)
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* Iduronic acid (6C)
* Aldaric acids
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* Tartaric acid (4C)
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* ''meso''-Galactaric acid (Mucic acid) (6C)
*
* D-Glucaric acid (Saccharic acid) (6C)
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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