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Thermo Scientific™ Dischi Microdase Remel™

Codice prodotto. 10250483
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Quantità:
25 dischi/flacone
Dimensione della confezione:
pezzi 25
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Codice prodotto. Quantità unitSize
10250483 25 dischi/flacone pezzi 25
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Codice prodotto. 10250483 Fornitore Thermo Scientific™ N. del fornitore R21132

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Descrizione

Rapidly differentiate Staphylococcus from Micrococcus species by detecting oxidase enzyme within 2 minutes with this reagent-impregnated disk.

Differentiate Staphylococcus from Micrococcus by detecting the oxidase enzyme with Thermo Scientific™ Remel™ Microdase Disk.

In 1956, Kovacs1 described the oxidase method that can be used to differentiate Gram-negative bacilli. Faller and Schleifer2 modified Kovacs' oxidase reagent by using a tetramethyl-p-phenylenediamine (TMPD) in dimethyl sulfoxide (DMSO). Tarrand and Groschel3 further tested modified Kovacs and confirmed it to be far superior to Kovacs' oxidase reagent.

All micrococci have cytochrome c whereas most staphylococci (with a few exceptions) lack this type of cytochrome. The oxidase reagent confirms the presence of cytochrome c4 by exhibiting color change to blue or purple.

  • Ready to use: Reagent-impregnated disk. No further preparation required.
  • Easy to read: Visible color change that confirms positive test
    Positive test: Blue or purple color development within 2 minutes
    Negative test: No color change (white to grey color remains) within 2 minutes.

Each Microdase Disk is impregnated with tetramethyl-p-phenylenediamine (TMPD) in dimethyl sulfoxide (DMSO). The DMSO provides solubility and stability against auto-oxidation and enhances the permeability of TMPD into the bacterial cell. In presence of atmospheric oxygen, the oxidase enzyme reacts with TMPD and cytochrome c in the organism to form the colored compound indophenol.

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

TRUSTED_SUSTAINABILITY

Specifica

Content And Storage 2°C to 8°C
Descrizione Dischi Microdase
Marchio CE Yes
Analiti rilevabili differenziazione degli stafilococchi dai micrococchi
Formato Vial
Quantità 25 dischi/flacone
Titolo del prodotto
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