Lactobionic acid

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Lactobionic acid
Lactobionic acid.png
Identifiers
CAS number 96-82-2 YesY
PubChem 16219560
ChemSpider 7040 N
Jmol-3D images Image 1
Properties
Molecular formula C12H22O12
Molar mass 358.30 g mol−1
Appearance Syrup[1]
Solubility in water Freely soluble[1]
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
 N (verify) (what is: YesY/N?)
Infobox references

Lactobionic acid (4-O-β-galactopyranosyl-D-gluconic acid) is a sugar acid. It is a disaccharide formed from gluconic acid and galactose. It can be formed by oxidation of lactose. The carboxylate anion of lactobionic acid is known as lactobionate.

As an acid, lactobionic acid can form salts with mineral cations such as calcium, potassium, sodium and zinc. Calcium lactobionate is a food additive used as a stabilizer. Potassium lactobionate is added to organ preservation solutions such as Viaspan or CoStorSol to provide osmotic support and prevent cell swelling. Mineral salts of lactobionic acid are also used for mineral supplementation.

Lactobionic acid is also used in the cosmetics industry as an antioxidant and in the pharmaceutical industry as an excipient for formulation. For example, the antibiotic erythromycin is used as the salt erythromycin lactobionate when intravenously delivered.

References[edit]

  1. ^ a b Merck Index, 11th Edition, 5219

External Links[edit]

CoStorSol