49940

ONPG Disks

suitable for microbiology

• Synonim(y): β-Galactosidase Test Disks, 2-Nitrophenyl-β-D-galactopyranoside Disks
• Kod UNSPSC: 41171621
• NACRES: NA.85

Właściwości

• agency: according to GB 4789.4-2016
• linia produktu: BioChemika
• okres trwałości: limited shelf life, expiry date on the label
• metody: microbe id | specific enzyme detection: suitable
• Zastosowanie: environmental; food and beverages; microbiology
• Warunki transportu: wet ice
• temp. przechowywania: 2-8°C
• przydatność: Escherichia coli; bacteria

Opis

Opis ogólny

ONPG Disks are used to detect the presence of β-galactosidase, an enzyme found in lactose-fermenting organisms. Lactose utilization depends upon two enzymes: β-galactoside permease, which catalyzes transport of lactose into the cell, and β-galactosidase, which breaks down lactose into galactose and glucose. β-Galactosidase is not lactose specific and can act on simple galactosides including the ONPG (o-nitrophenyl-β-D-galactopyranose) substrate. ONPG hydrolysis results in the release of galactose, and the yellow chromogenic compound, o-nitrophenol. The test substrate, ONPG, does not depend on an induced or constitutive permease enzyme to enter the cell, therefore reactions are rapid and occur within a 24-hour period even for late lactose fermenters.

Opakowanie

Sterile filter paper discs (50 pcs, diameter 6 mm) impregnated with o-nitrophenyl-β-D-galactopyranose

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Informacja o środkach bezpieczeństwa

• Kod klasy składowania: 11 - Combustible Solids
• Klasa zagrożenia wodnego (WGK): WGK 3
• Temperatura zapłonu (°F): Not applicable
• Temperatura zapłonu (°C): Not applicable
• Środki ochrony indywidualnej: Eyeshields, Gloves, type N95 (US)