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ReadyTube® Violet Red Bile Glucose Agar

For the detection and enumeration of Enterobacteriaceae in food samples in accordance to ISO 21528, pkg of (200 mL in 250 mL bottle with blue screw cap and 3 loci (6 bottles per box))

Synonym(s):

VRBG Agar, VRBD Agar, Violet Red Bile Dextrose Agar

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About This Item

UNSPSC Code:
41106225
NACRES:
NA.74

agency

ISO 21528

Quality Level

feature

ready-to-use

manufacturer/tradename

ReadyTube®

packaging

pkg of (200 mL in 250 mL bottle with blue screw cap and 3 loci (6 bottles per box))

pH

7.6 ( in H2O)

application(s)

food and beverages
industrial qc
microbiology

storage temp.

2-25°C

suitability

enterobacteriaceae

General description

ReadyTube® is ready to use media to provide the highest level of quality and testing confidence for improving accuracy and significantly reducing the risk of false results. ReadyTube® Violet Red Bile Glucose Agar is used for selective isolation of Enterobacteriaceae or bile tolerant gram-negative bacteria. Enzymatic digest of animal tissues and yeast extract provide nitrogenous compounds and other nutrients essential for bacterial metabolism. This media is selective due to the presence of the bile salts and crystal violet. Crystal violet inhibits Gram-positive organisms especially Staphylococci. Neutral red indicator helps to detect glucose fermentation. Glucose fermenting strains grow red or pink and are surrounded by a zone of acid precipitated bile. Sodium chloride maintains the osmotic equilibrium in the medium. The red color is due to the absorption of neutral red and a subsequent color change of the dye when the pH of the medium falls below 6.8.

Application

ReadyTube® Violet Red Bile Glucose Agar is used for selective isolation of Enterobacteriaceae or bile tolerant Gram-negative bacteria from non-sterile pharmaceutical products, foodstuffs, and environment samples.

Legal Information

READYTUBE is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 2


Certificates of Analysis (COA)

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Protocols

The International Organization for Standardization (ISO) published the revised EN ISO 21528-1 and EN ISO 21528-2 standards in 2017.

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