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Key Documents

27048

Millipore

Christensen′s Urea Agar

suitable for microbiology, NutriSelect® Basic

Synonyme(s) :

Urea Agar Base acc. to Christensen, Urea Test Agar

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About This Item

Code UNSPSC :
41171606
Nomenclature NACRES :
NA.74

Agence

according to GB 4789.4-2016
according to ISO 10273:2017
according to ISO 19250:2010
according to ISO 6579-1:2017

Niveau de qualité

Stérilité

non-sterile

Gamme de produits

BioChemika

Forme

powder

Durée de conservation

limited shelf life, expiry date on the label

Composition

agar, 12 g/L
gelatine peptone, 1 g/L
D(+)-glucose, 1 g/L
phenol red, 0.012 g/L
potassium dihydrogen phosphate, 2 g/L
sodium chloride, 5 g/L

Fabricant/nom de marque

NutriSelect® Basic

Technique(s)

microbe id | specific enzyme detection: suitable
microbiological culture: suitable

pH final

6.8±0.2 (25 °C)

Application(s)

clinical testing
environmental
food and beverages

microbiology

Adéquation

nonselective and differential for Enterobacter spp.
nonselective and differential for Escherichia coli
nonselective and differential for Klebsiella spp.
nonselective and differential for Proteus spp.
nonselective and differential for Yersinia spp.
nonselective and differential for coliforms

Application

For the differentiation of urea-metabolizing microorganisms. Weak urease producers such as klebsiella, enterobacter etc. can also be differentiated. Yersinia pseudotuberculosis (urea positive) from Yersinia pestis (urea negative) acc. to Thal and Chen (1955).

Notes préparatoires

Dissolve 21 g in 950 ml distilled water. Sterilize by autoclaving at 121°C for 15 minutes. After cooling to 50°C, add aseptically 50ml (10 vials) sterile filtered 40% urea solution (Cat. No. 08582) and let cool as slants.

Autres remarques

Screening of enteric pathogens from stool specimens

Note de bas de page

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.

Informations légales

GRANUCULT is a registered trademark of Merck KGaA, Darmstadt, Germany
NutriSelect is a registered trademark of Merck KGaA, Darmstadt, Germany

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Gloves, type N95 (US)


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Les clients ont également consulté

Two simple tests for the differentiation of plague and pseudo tuberculosis bacilli.
E THAL et al.
Journal of bacteriology, 69(1), 103-104 (1955-01-01)
W.B. Christensen
Journal of Bacteriology, 69, 103-103 (1946)
P A Villasante et al.
Journal of clinical microbiology, 25(3), 584-585 (1987-03-01)
A total of 800 colonies suggestive of Salmonella, Shigella, or Yersinia species isolated on stool differential agar media were inoculated onto both conventional biochemical test media (triple sugar iron agar, urea agar, and phenylalanine agar) and Entero Pathogen Screen cards

Articles

There are many other methods of detection to indicate the presence of E. coli. Review common tests and biochemical reactions for this contaminant.

An article concerning selective growth media for differentiation and detection of Escherichia coli and other coliforms.

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