M8802
Malonate broth
pH 6.7±0.2 (25 °C), NutriSelect® Plus, suitable for microbiology
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About This Item
UNSPSC Code:
41171607
NACRES:
NA.85
Recommended Products
sterility
non-sterile
Quality Level
form
powder
manufacturer/tradename
NutriSelect® Plus
technique(s)
microbe id | utilization test: suitable
microbiological culture: suitable
pH
6.7±0.2 (25 °C)
application(s)
food and beverages
water monitoring
microbiology
suitability
Klebsiella spp.
Salmonella spp.
nonselective and differential for Enterobacter spp.
nonselective and differential for Escherichia coli
nonselective and differential for coliforms
General description
Malonate broth is recommended for the differentiation of Enterobacter and Escherichia.
Application
Malonate broth has been used to evaluate the utilization of malonate by Enterobacter sakazakii. It has also been used to differentiate between Cronobacter sakazakii and Cronobacter malonaticus isolates.
Components
Components (g/L)
Ammonium sulfate, 2.00
Dipotassium phosphate, 0.60
Monopotassium phosphate, 0.40
Sodium chloride, 2.00
Sodium malonate, 3.00
Bromo thymol blue, 0.025
Ammonium sulfate, 2.00
Dipotassium phosphate, 0.60
Monopotassium phosphate, 0.40
Sodium chloride, 2.00
Sodium malonate, 3.00
Bromo thymol blue, 0.025
Preparation Note
Suspend 8 g of Malonate Broth in 1000 ml of distilled water. Dispense and sterilize by autoclaving at 15 lbs. pressure (121°C) for 15 minutes. Avoid the addition of carbon and nitrogen from other sources.
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
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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Carol Iversen et al.
BMC evolutionary biology, 7, 64-64 (2007-04-19)
Enterobacter sakazakii is an opportunistic pathogen that can cause infections such as necrotizing enterocolitis, bacteraemia, meningitis and brain abscess/lesions. When the species was defined in 1980, 15 biogroups were described and it was suggested that these could represent multiple species.
Amy Strydom et al.
Food microbiology, 28(8), 1472-1477 (2011-09-20)
Members of the genus Cronobacter are opportunistic pathogens associated with life-threatening infections in immuno-compromised individuals. Polyphasic analysis has facilitated the classification of the novel genus Cronobacter containing five species. However, since this recent reclassification there are not many identification methods
Jung-Beom Kim et al.
Journal of microbiology and biotechnology, 21(5), 509-514 (2011-05-28)
This study was conducted to investigate the phenotypic and genotypic characteristics of Korean isolates of Cronobacter spp. (Enterobacter sakazakii). A total of 43 Cronobacter spp., including 5 clinical isolates, 34 food isolates, 2 environmental isolates, and 2 reference strains (C.
Ewing, W., et al.
Publ. Hlth. Lab., 15, 153-153 (1957)
MacFaddin, J
Media for Isolation-Cultivation-Identification-Maintenance of Medical Bacteria, 1 (1985)
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