Liquid Chromogenic Culture Media
Cantidad : 500000PCS Precio : 0.2USD~8000USD
Liquid Chromogenic Culture Medium
Coliforms and E. coli liquid chromogenic medium
Performance Characteristics of Liquid Chromogenic Culture Media
1. It is included in the "Japan Food Hygiene Guide" (2004 edition) with strong authoritative influence.
2. There are two kinds of chromogenic substances, which can directly recognize coliforms and E. coli.
3. The test results can be obtained within 24 hours, but BGLB needs 48 hours.
4. No need for a fermentation tube and a constant temperature pool with low cost and easy operation.
5. No need to prepare medium and wash tubes (except XM powder medium).
6. No need for identification and supplementation experiments such as EMB culture.
7. E.coli O157 cannot be identified separately but qualitative testing only.
Product Details of Liquid Chromogenic Culture Media
Name |
Model |
Application |
Capacity |
Packing |
Validity Period |
Liquid chromogenic culture medium |
XM-30 |
For 1ml sample inspection |
10ml/cup |
128 cups/carton |
1 year |
Liquid chromogenic culture medium |
XM-31 |
For 10ml sample inspection |
10ml/cup |
128 cups/carton |
|
Liquid chromogenic culture medium |
XM-32 |
For 5ml sample inspection |
5ml/cup |
128 cups/carton |
|
XM powder medium |
XM0001 |
For preparing medium |
8.5g/bag |
20 bags/carton |
3 years |
MT opener |
OS-01 |
For MT container opening |
/ |
1pc |
/ |
Usage Method of Liquid Chromogenic Culture Media
1. Container surface sterilization: The surface of the aluminum foil should be disinfected with an lamp before use.
2. Opening: Open the aluminum foil with an MT opener (OS-01) or open directly with a sterile pipette.
3. Inject the sample diluent: use a pipette to inject the sample dilution into the cup
XM-30: 1ml, XM-31: 10ml, XM-32: 5ml
4. Cultivation: Culture time: 24 hours; Culture temperature: 36 ± 1 °C
5. Disposal: Dispose of them after sterilization
※XM powder medium usage: Dissolve 500ml of pure water per bag, inject 10ml into the test tube, autoclave, then inject 1ml sample, and incubate at 36±1°C for 24 hours. The identification method is the same.
Coloring Principle
Coliforms positive
There is a special β-galactosidase only exit in the coliforms. It can be used as an indicator enzyme for coliform bacteria, which catalyzes the hydrolysis of the substrate X-GAL to form 5,5-dibromo -4,4-dichloro indigo, appearing light blue ~ purple-blue.
E. coli positive
β--glucuronidase can be used as an indicator enzyme for Escherichia coli; because β-glucuronidase can be observed in Escherichia coli, Salmonella and Shigella in intestinal bacteria, and 95% of E. coli contains β-glucuronidase. It catalyzes the hydrolysis of MUG to form 4-methylumbelliferon, which exhibits fluorescence at 366 nm ultraviolet light and is visually discernible under indoor light intensity.
ELEX Biological Products (Shanghai) Co., Ltd.is a professional colony counter manufacturer. We provide Sterile Blender Bag, Sterile Sampling Bag, swab sampler and so on. Want to know more? Please contact us.
Persona a contactar : Cheng Bella, +86 021 59868187
Buen trato: comprar del vendedor
Por favor, lea nuestras condiciones de uso. También puede visitar nuestras preguntas frecuentes y ver nuestra información sobre los riesgos relacionados con la falsificación.
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