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Thermo Scientific™ Remel™ BactiDrop™ Voges-Proskauer A

Catalog No. R21560
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50 x 0.75 mL
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R21560 50 x 0.75 mL
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Catalog No. R21560 Supplier Thermo Scientific™ Supplier No. R21560
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Description

Determine the ability of gram-negative bacilli to produce acetylmethylcarbinol (acetoin) from glucose fermentation using Voges-Proskauer A Test.

Determine the ability of gram-negative bacilli to produce acetylmethylcarbinol (acetoin) from glucose fermentation using Thermo Scientific™ Remel™ Bactidrop™ Voges-Proskauer A Test. In 1898, Voges and Proskauer reported production of acetylmethylcarbinol from glucose fermentation by certain bacteria when grown in an appropriate medium such as MR-VP Broth, which is a modification of Clark and Lubs medium1,2. Later Barret made the VP test more sensitive by using 5% Alpha Naphthol (VP-A) to the medium for the detection of acetylmethylcarbinol3.

The BactiDrop™ Voges-Proskauer A test is based on the detection of acetoin (acetylmethylcarbinol) production which is a precursor to 2,3-butanediol from glucose metabolism.Ready to use: Convenience of a prepared reagent.Ease of Differentiation: VP positive organisms produce a pink color development while VP negative organisms produce no color.Rapid Detection: Within 15 minutes.Glucose is metabolized to pyruvic acid from which the neutral products acetoin and 2.3-butanediol are formed. One molecule of acetoin is formed by the decarboxylation of two molecules of pyruvic acid. In the presence of oxygen and alkali, acetoin and 2,3-butanediol are oxidized to diacetyl which is the reactant for the pink color produced in Voges-Proskauer test. 5% Alpha Naphthol is a catalyst which acts as a color intensifier and increase the sensitivity of the reaction.Used in conjunction with VP-B, Part No. R21562. For use with MRVP Broth.Not all products are available for sale in all territories. Please inquire.Remel™ and Oxoid™ products are now part of the Thermo Scientific brand.

Specifications

Content And Storage 20°C to 25°C
Description Bactidrop Vp-a Alpha Na
CE Marker Yes
Detectable Analytes Acetylmethylcarbinol
Quantity 50 x 0.75 mL