52284

Lactose Fermentation Membrane

white colored, sterile, diameter 70 mm, suitable for microbiology

• Synonym(s): Indicator membrane, ID Membranes
• UNSPSC Code: 41171621
• NACRES: NA.85

Properties

• membrane size: 70 mm
• sterility: sterile
• shelf life: limited shelf life, expiry date on the label
• storage condition: protect from light
• technique(s): microbe id | utilization test: suitable
• application(s): clinical testing; environmental; food and beverages; pharmaceutical; microbiology
• storage temp.: 2-8°C
• suitability: Escherichia coli; bacteria; coliforms

Description

General description

Lactose Fermentation Membranes are substrate-carrying ID membranes used for rapid identification and differentiation of lactose fermenting organisms (coliforms) through characteristic color reactions. Microorganisms can only ferment certain carbohydrates, depending on the enzymes they possess to break down carbohydrates. The membranes contain lactose as substrates and a pH indicator, which serve as the basis for microbe differentiation by color. The test is specific for lactose fermenting organisms, which will exhibit yellow color.

Application

Lactose Fermentation Membranes are recommended to detect lactose fermenting bacteria (coliforms) in food and environmental samples. They find their application in various sectors such as the food and dairy industry, water industry, pharmaceutical laboratory testing, cosmetic industry, environmental and sanitary testing, clinical diagnostic, etc.

Analysis Note

Citrobacter freundii (8090) - PositiveEnterobacter aerogenes (13048) - PositiveEscherichia coli (25922) - PositiveKlebsiella pneumoniae (13883) - PositiveProteus vulgaris (13315)- NegativeSalmonella typhimurium (14028) - NegativeSalmonella typhi (6539) - NegativeSerratia marcescens (8100) - NegativeShigella flexneri (12022) - Negative

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable