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Merck
CN

01433

Biochemical Esculin ID Membrane

light brown colored, sterile, diameter 70 mm, suitable for microbiology

Synonym(s):

Esculin Test ID Membrane, Indicator membrane

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About This Item

NACRES:
NA.85
UNSPSC Code:
41171621
Sterility:
sterile
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membrane size

70 mm

Quality Segment

sterility

sterile

shelf life

limited shelf life, expiry date on the label

storage condition

protect from light

technique(s)

microbe id | specific enzyme detection: suitable

application(s)

agriculture
environmental
food and beverages
pharmaceutical, microbiology

storage temp.

2-8°C

suitability

Streptococcus spp.

General description

Biochemical Esculin ID Membranes are substrate-carrying membranes used for rapid identification and differentiation of Group D Streptococci through characteristic color reactions. The membranes contain chromogenic substrates, which serve as the basis for microbe differentiation by color. The group D Streptococci are differentiated from non-group D Streptococci by the detection of esculin hydrolysis. Group D Streptococci hydrolyze the esculin to esculetin and dextrose. Esculetin reacts with an iron salt such as ferric citrate to form a blackish-brown colored complex. The reaction runs on a membrane that gets into contact with colony material.

Application

Biochemical Esculin ID Membrane is recommended to detect Group D Streptococci from pharmaceutical preparations, raw materials, cosmetic samples, etc. 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

Escherichia coli (25922) - ColorlessEnterococcus faecalis (29212) - BlackEnterococcus faecium (27273) - BlackStaphylococcus aureus (25923) - Colorless


Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable



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