49940

ONPG Disks

suitable for microbiology

• 別名: β-Galactosidase Test Disks, 2-Nitrophenyl-β-D-galactopyranoside Disks
• UNSPSCコード: 41171621
• NACRES: NA.85

特性

• 認証: according to GB 4789.4-2016
• 品質水準: 100
• 製品種目: BioChemika
• シェルフライフ: limited shelf life, expiry date on the label
• テクニック: microbe id | specific enzyme detection: suitable
• アプリケーション: environmental; food and beverages; microbiology
• 輸送温度: wet ice
• 保管温度: 2-8°C
• 適合性: Escherichia coli; bacteria

詳細

詳細

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.

包装

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

安全性情報

• 保管分類コード: 11 - Combustible Solids
• WGK: WGK 3
• 引火点(°F): Not applicable
• 引火点(℃): Not applicable
• 個人用保護具 (PPE): Eyeshields, Gloves, type N95 (US)