Galactose dehydrogenase (soil prokaryote) 

High purity recombinant Galactose dehydrogenase (soil prokaryote) for use in research, biochemical enzyme assays and in vitro diagnostic analysis.

EC 1.1.1.48
CAS: 9028-54-0

D-galactose 1-dehydrogenase; D-galactose:NAD+ 1-oxidoreductase

Recombinant. From soil prokaryote. 
In 3.2 M ammonium sulphate.
Supplied at ~ 100 U/mL. 

Specific activity:
~ 280 U/mg (25oC, pH 8.6 on D-galactose).

Stability: > 2 years at 4oC.

Product Code
Content/size
Stock
Price
Qty
E-GALDH
200 Units
$221.00

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DESCRIPTION

Galactose dehydrogenase (soil prokaryote) 

EC 1.1.1.48
CAS: 9028-54-0

Synonyms:
D-galactose 1-dehydrogenase; D-galactose:NAD+ 1-oxidoreductase

Form:
In 3.2 M ammonium sulphate.

Stability: 
> 2 years at 4oC.

Specific activity:
~ 280 U/mg (25oC, pH 8.6 on D-galactose).

Unit definition:
One unit of galactose dehydrogenase activity is defined as the amount of enzyme required to convert one µmole of D-galactose to D-galactanate per minute in the presence of NAD+ in Tris-HCl buffer (93 mM), pH 8.6 at 25oC.

Specificity:
Catalyses the reaction:
D-galactose + NAD+ = D-galactono-1,4-lactone + NADH + H+

Also acts on L-arabinose but more slowly.

Applications:
Applications for the measurement of D-galactose (and L-arabinose) in carbohydrate research and in the food, fermentation, wine, beverage and dairy industries.

Assay for determination of free D-galactose and/or L-arabinose.

Charnock, S. C. & McCleary, B. V. (2006). Irish Patent No. S84280, UK Patent No. 1828407, German Patent No. 1828407, French Patent No. 1828407 and USA Patent No. US7, 785, 771/11/722,000.