1.10549
Granucult® Listeria Enrichment Broth
According to FDA/IDF-FIL; For microbiology
Synonym(s):
Listeria Enrichment broth, LEB
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About This Item
UNSPSC Code:
41106213
NACRES:
NA.74
reg. compliance
FDA IDF-FIL
Quality Level
sterility
non-sterile
form
granular
manufacturer/tradename
GranuCult® plus
technique(s)
microbiological culture: suitable
pH
7.1-7.5 (30 °C, 36.1 g/L in H2O, after autoclaving)
solubility
36.1 g/L
application(s)
food and beverages
microbiology
storage temp.
2-30°C
suitability
Listeria spp.
General description
The Granucult® Listeria Enrichment Broth formulation is a modified Tryptic Soy (CASO) Broth with an additional 6 g/liter of yeast extract. The inhibition of undesired accompanying flora is achieved by the addition of acriflavin HCl, cycloheximide, and nalidixic acid. In contrary to Listeria Enrichment Broth (Base) (1.11951), this broth already contains antibiotic substances.
Application
Granucult® Listeria Enrichment Broth is intended for the selective enrichment of Listeria.
Linkage
Replaces: 1.10549.5007
Analysis Note
Appearance (clearness): clear
Appearance (colour): yellowish-brown
pH-value (25 °C): 7.1 - 7.5
Inoculum on reference medium (Listeria monocytogenes ATCC 13932 (WDCM 00021)): 10 - 100
Inoculum on reference medium (Listeria monocytogenes ATCC 19114 (WDCM 00110)): 10 - 100
Inoculum on reference medium (Listeria monocytogenes ATCC 35152 (WDCM 00109)): 10 - 100
Inoculum on reference medium (Listeria innocua ATCC 33090 (WDCM 00017)): 10 - 100
Colony count (Listeria monocytogenes ATCC 13932 (WDCM 00021)): ≥ 1E+04 CFU/ml
Colony count (Listeria monocytogenes ATCC 19114 (WDCM 00110)): ≥ 1E+04 CFU/ml
Colony count (Listeria monocytogenes ATCC 35152 (WDCM 00109)): ≥ 1E+04 CFU/ml
Colony count (Listeria innocua ATCC 33090 (WDCM 00017)): ≥ 1E+04 CFU/ml
Colony count (Staphylococcus aureus ATCC 6538 (WDCM 00032)): ≤ 1000 CFU/ml
Incubation: 24 hrs.; 30 °C; aerobically.
Appearance (colour): yellowish-brown
pH-value (25 °C): 7.1 - 7.5
Inoculum on reference medium (Listeria monocytogenes ATCC 13932 (WDCM 00021)): 10 - 100
Inoculum on reference medium (Listeria monocytogenes ATCC 19114 (WDCM 00110)): 10 - 100
Inoculum on reference medium (Listeria monocytogenes ATCC 35152 (WDCM 00109)): 10 - 100
Inoculum on reference medium (Listeria innocua ATCC 33090 (WDCM 00017)): 10 - 100
Colony count (Listeria monocytogenes ATCC 13932 (WDCM 00021)): ≥ 1E+04 CFU/ml
Colony count (Listeria monocytogenes ATCC 19114 (WDCM 00110)): ≥ 1E+04 CFU/ml
Colony count (Listeria monocytogenes ATCC 35152 (WDCM 00109)): ≥ 1E+04 CFU/ml
Colony count (Listeria innocua ATCC 33090 (WDCM 00017)): ≥ 1E+04 CFU/ml
Colony count (Staphylococcus aureus ATCC 6538 (WDCM 00032)): ≤ 1000 CFU/ml
Incubation: 24 hrs.; 30 °C; aerobically.
Footnote
We offer two media types: the superior granulated GranuCult® and the cost-efficient powdered NutriSelect® culture media, depending on your needs.
The designations basic, plus, or prime are added to indicate the quality control level, from basic quality control to standard QC plus to prime for full regulatory compliance.
The designations basic, plus, or prime are added to indicate the quality control level, from basic quality control to standard QC plus to prime for full regulatory compliance.
Legal Information
GRANUCULT is a registered trademark of Merck KGaA, Darmstadt, Germany
NutriSelect is a registered trademark of Merck KGaA, Darmstadt, Germany
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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