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Thermo Scientific™ Simmons Citrate Agar (Dehydrated)

Codice prodotto. 10351383
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Quantità:
500 g
Dimensione della confezione:
500g
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10351383 500 g 500g
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Codice prodotto. 10351383 Fornitore Thermo Scientific™ N. del fornitore CM0155B

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Descrizione

Differentiate members of the family Enterobacteriaceae based on the utilization of citrate with this medium.

Differentiate members of the family Enterobacteriaceae based on the utilization of citrate with Thermo Scientific™ Oxoid™ Simmons Citrate Agar (Dehydrated). The medium is a solidified form of Koser citrate medium which suffered from the disadvantage that false appearance of growth occurred when large inocula were employed. Simmons1 modified Koser's formulation by adding agar and bromothymol blue2. It complies with the recommendations if the APHA3.

Simmons Citrate Agar is used wither as slopes in test tubes or as a plate medium in petri dishes. Positive growth (i.e. citrate utilization) produces an alkaline reaction and changes the colour of the medium from green to bright blue, while in a negative test (i.e. no citrate utilization) the colour of the medium remains unchanged.

Escherichia coli including serotypes from epidemic infantile enteritis, as well as Shigella, Yersinia and Edwardsiella species do not grow on the medium. Serratia and the majority of the Enterobacter, Citrobacter, Klebsiella, Proteus and Providencia species, except Morganella morganii and Klebsiella rhinoscleromatis utilize citrate and produce the characteristic blue coloration4.

Simmons Citrate Agar may be used to differentiate citrate-positive Salmonella enteritidis and members of Salmonella subgenus II, III and IV from the citrate-negative Salmonella typhi, Salmonella paratyphi A, Salmonella pullorum and Salmonella gallinarum.

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Remel™ and Oxoid™ products are now part of the Thermo Scientific brand.

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Specifica

Certificazione/Conformità Industrial Reference: AOAC, FDA, USDA.
Descrizione Simmons Citrate Agar
Forma Powder
Product Type Agar
Quantità 500 g
Resa Per terreno da 21,7 l

Per uso esclusivo in laboratorio

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