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1.00439

ChromoCult® Listeria Agar Enrichment-Supplement

ChromoCult®, selective for Listeria spp.

Synonyme(s) :

Listeria Enrichment Supplement

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10 vial
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227,00 €

A propos de cet article

NACRES:
NA.74
UNSPSC Code:
41106212

227,00 €


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Quality Segment

agency

APHA, ISO 11133, ISO 11290-1, ISO 11290-2

form

lyophilized powder

manufacturer/tradename

ChromoCult®

technique(s)

microbiological culture: suitable

pH

6.6 (20 °C in H2O)

application(s)

food and beverages
microbiology
pathogen testing

compatibility

for use with ChromoCult® Listeria agar (base) acc. OTTAVIANI and AGOSTI (1.00427)

storage temp.

2-8°C

suitability

selective for Listeria spp. (Agar)

General description

ChromoCult® Listeria Agar Enrichment-Supplement is a homogeneous, sterile suspension of L-α-phosphatidylinositol in distilled water. Differentiation of Listeria monocytogenes from non-pathogenic Listeria sp. is achieved through the production of a phosphatidylinositol-specific phospholipase C (PI-PLC). Listeria monocytogenes hydrolyses the specific purified substrate added to the medium producing an opaque halo around the colonies.

Application

ChromoCult® Listeria Agar Enrichment-Supplement is used as an additive for the preparation of ChromoCult® Listeria Selective Agar (1.00427) for detection and enumeration of Listeria monocytogenes and of Listeria sp. in a variety of food products.

Analysis Note

Growth promotion test according to ISO 11133.
Inoculum on reference medium
- Listeria monocytogenes ATCC 13932 (WDCM 00021):
10 - 100
- Listeria monocytogenes ATCC 19111 (WDCM 00020): 10 - 100
- Listeria innocua ATCC 33090 (WDCM 00017): 10 - 100
Recovery on test medium
- Listeria monocytogenes ATCC 13932 (WDCM 00021):
≥ 70 %
- Listeria monocytogenes ATCC 19111 (WDCM 00020): ≥ 70 %
- Listeria innocua ATCC 33090 (WDCM 00017): ≥ 70 %
Colonies
- Listeria monocytogenes ATCC 13932 (WDCM 00021):
blue-green; non-transparent zone
- Listeria monocytogenes ATCC 19111 (WDCM 00020): blue-green; non-transparent zone
- Listeria innocua ATCC 33090 (WDCM 00017): blue-green
Growth
- Escherichia coli ATCC 25922 (WDCM 00013):
no growth
- Escherichia coli ATCC 8739 (WDCM 00012): no growth
- Enterococcus faecalis ATCC 19433 (WDCM 00009): no growth
- Enterococcus faecalis ATCC 29212 (WDCM 00087): no growth
Incubation: Listeria 24-48 Std. 37°C aerobic; other strains at least 48 hrs.

Other Notes

Replaces: 1004390017

Legal Information

CHROMOCULT is a registered trademark of Merck KGaA, Darmstadt, Germany

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Cet article
1.004271.004321.11781
description

ChromoCult®, selective for Listeria spp.

description

ISO 11290, For the isolation and differentiation of Listeria monocytogenes and other Listeria sp.

description

for Listeria spp., pkg of 10 vials, for the preparation of ChromoCult® Listeria agar (base)

description

for Listeria spp., pkg of 10 vials, for use with Listeria-Enrichment-Broth (Base), for use with GranuCult® Buffered Listeria Enrichment Broth (base)

technique(s)

microbiological culture: suitable

technique(s)

microbiological culture: suitable

technique(s)

microbiological culture: suitable

technique(s)

microbiological culture: suitable

application(s)

food and beverages
microbiology
pathogen testing

application(s)

food and beverages
microbiology

application(s)

food and beverages
microbiology

application(s)

food and beverages
microbiology

form

lyophilized powder

form

medium granules (dehydrated (DCM))

form

lyophilized powder

form

solid

suitability

selective for Listeria spp. (Agar)

suitability

Listeria spp.

suitability

Listeria spp.

suitability

Listeria spp.

storage temp.

2-8°C

storage temp.

15-25°C

storage temp.

2-8°C

storage temp.

2-8°C

pH

6.6 (20 °C in H2O)

pH

7.0-7.4 (25 °C, 70 g/L in H2O)

pH

6.2 (20 °C in H2O, Aqueous solution)

pH

-


Classe de stockage

12 - Non Combustible Liquids

wgk

WGK 1



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