| Cat# | DIA-512 |
| Source | Aspergillus niger |
| Description | High purity β-galactosidase (Aspergillus niger) for use in research, biochemical enzyme assays and in vitro diagnostic analysis. |
| Form | Suspension |
| ECNumber | 3.2.1.23 |
| Activity | ~ 240 U/mg (40 °C, pH 4.5 on p-nitrophenyl β-D-galactoside) |
| Optimum temperature | 60 °C |
| Stability | > 1 year under recommended storage conditions |
| Unit Definition | One unit of β-galactosidase activity is defined as the amount of enzyme required to release one µmole of p-nitrophenol (pNP) per minute from p-nitrophenyl-β-D-galactoside (10 mM) in sodium acetate buffer (100 mM), pH 4.5 at 40 °C. |
| Storage | 2–8 °C |
| Synonyms | β-galactosidase; β-D-galactoside galactohydrolase |
| Buffer | 3.2 M ammonium sulphate |
| Applications | Applications established in analysis and research within the food and feed, carbohydrate and biofuels industries. |
| Molecular Weight | 125000 Da |
| Concentration | ~ 4000 U/mL |
| Specificity | Hydrolysis of terminal non-reducing β-D-galactose residues in β-D-galactosides. |
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