1.13919
GranuCult® XLT4 agar (Base)
pkg of 500 g, according to USDA-FSIS, ISO 6579, for Salmonella spp.
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About This Item
UNSPSC Code:
41106213
NACRES:
NA.74
Recommended Products
agency
ISO 6579
according to USDA-FSIS
Quality Level
description
acc. USDA-FSIS and ref. to ISO 6579 GranuCult
form
medium granules (dehydrated (DCM))
packaging
pkg of 500 g
manufacturer/tradename
GranuCult®
technique(s)
microbiological culture: suitable
pH
7.4 (59 g/L in H2O)
application(s)
food and beverages
microbiology
storage temp.
15-25°C
suitability
Salmonella spp. (spp.)
Related Categories
General description
GranuCult® XLT4 agar (Base) contains a selection of suitable nutrients and vitamins (peptones, yeast extract) that allow optimal growth of salmonellae. The surfactant NIAPROOF-4 (formerly Tergitol-4/Sodiumtetradecylsulfate) inhibits the accompanying flora. Salmonellae, due to H2S-formation (thiosulfate and iron (III)-ions), can be easily detected as black colonies on a red-violet background and differentiated from the residual accompanying flora. E. coli shows yellow colonies on a yellow background due to acidification of the medium (pH-indicator: phenol-red). Other accompanying organisms, like Shigella, will grow colorless on a red background due to a missing H2S-formation and acidification.
Application
GranuCult® XLT4 agar (Base) is suitable for the isolation and identification of pathogenic Enterobacteriaceae, especially Salmonella spp.
Analysis Note
Appearance (clearness): clear
Appearance (colour): red
pH-value (25 °C): 7.2 - 7.6
Growth (Salmonella enteritidis ATCC 13076 (WDCM 00030)): good to very good
Growth (Salmonella typhimurium ATCC 14028 (WDCM 00031)): good to very good
Growth (Salmonella anatum ATCC 9270): fair to very good
Growth (Shigella sonnei ATCC 11060): fair to very good
Growth (Shigella flexneri ATCC 12022 (WDCM 00126)): good to very good
Growth (Enterobacter aerogenes ATCC 13048): fair to good
Growth (Citrobacter freundii ATCC 8090): fair to good
Growth (Escherichia coli ATCC 25922 (WDCM 00013)): none to fair
Growth (Proteus mirabilis ATCC 14273): none to poor
Black centre (Salmonella enteritidis ATCC 13076 (WDCM 00030)): +
Black centre (Salmonella typhimurium ATCC 14028 (WDCM 00031)): +
Black centre (Salmonella anatum ATCC 9270): +
Colony colour (Shigella sonnei ATCC 11060): colourless
Colony colour (Shigella flexneri ATCC 12022 (WDCM 00126)): colourless
Colony colour (Enterobacter aerogenes ATCC 13048): yellow
Colony colour (Citrobacter freundii ATCC 8090): yellow
Colony colour (Escherichia coli ATCC 25922 (WDCM 00013)): colourless to yellow
Incubation: 24 - 48 hrs. at 35 °C.
Base tested withXLT4 agar supplement Art. 1.08981.
Appearance (colour): red
pH-value (25 °C): 7.2 - 7.6
Growth (Salmonella enteritidis ATCC 13076 (WDCM 00030)): good to very good
Growth (Salmonella typhimurium ATCC 14028 (WDCM 00031)): good to very good
Growth (Salmonella anatum ATCC 9270): fair to very good
Growth (Shigella sonnei ATCC 11060): fair to very good
Growth (Shigella flexneri ATCC 12022 (WDCM 00126)): good to very good
Growth (Enterobacter aerogenes ATCC 13048): fair to good
Growth (Citrobacter freundii ATCC 8090): fair to good
Growth (Escherichia coli ATCC 25922 (WDCM 00013)): none to fair
Growth (Proteus mirabilis ATCC 14273): none to poor
Black centre (Salmonella enteritidis ATCC 13076 (WDCM 00030)): +
Black centre (Salmonella typhimurium ATCC 14028 (WDCM 00031)): +
Black centre (Salmonella anatum ATCC 9270): +
Colony colour (Shigella sonnei ATCC 11060): colourless
Colony colour (Shigella flexneri ATCC 12022 (WDCM 00126)): colourless
Colony colour (Enterobacter aerogenes ATCC 13048): yellow
Colony colour (Citrobacter freundii ATCC 8090): yellow
Colony colour (Escherichia coli ATCC 25922 (WDCM 00013)): colourless to yellow
Incubation: 24 - 48 hrs. at 35 °C.
Base tested withXLT4 agar supplement Art. 1.08981.
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
11 - Combustible Solids
wgk_germany
WGK 3
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Belgin Siriken et al.
Microbial drug resistance (Larchmont, N.Y.), 26(2), 136-144 (2019-08-28)
The aims of this study were to evaluate the prevalence of Salmonella spp., including S. Enteritidis and S. Typhimurium, their antibiotic resistance profiles, and the presence/absence of class 1 integron (intI1) in 50 raw ground beef and 50 raw, meatball
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