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Merck

70188

Violet Red Bile Agar

NutriSelect® Plus, according to ISO 4832, powder, for Enterobacter spp., pack of 500 g, suitable for microbiology

Synonym(s):

VRB Agar, VRBL-Agar

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About This Item

NACRES:
NA.74
UNSPSC Code:
41171606
Manufacturer/tradename:
NutriSelect® Plus
Agency:
according to ISO 4832
Form:
powder
Suitability:
Enterobacter spp., selective and differential for Escherichia coli, selective and differential for coliforms
Application(s):
agriculture
bioburden testing
environmental
food and beverages
water monitoring, microbiology
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Quality Level

agency

according to ISO 4832

sterility

non-sterile

form

powder

shelf life

limited shelf life, expiry date on the label

composition

agar, 12.0 g/L , bile salts, 1.5 g/L , crystal violet, 0.002 g/L , lactose, 10.0 g/L , neutral red, 0.03 g/L , peptone, 7.0 g/L , sodium chloride, 5.0 g/L , yeast extract, 3.0 g/L

packaging

pack of 500 g

manufacturer/tradename

NutriSelect® Plus

technique(s)

microbiological culture: suitable

final pH

7.4±0.2 (25 °C)

application(s)

agriculture
bioburden testing
environmental
food and beverages
water monitoring, microbiology

suitability

Enterobacter spp., selective and differential for Escherichia coli, selective and differential for coliforms

Application

A selective medium for the detection and enumeration of coliform organisms, especially the Coli-aerogenes-group in water, milk and other dairy products.

Preparation Note

Suspend 38.5 g in 1 litre of distilled water and let it sock for 5 minutes. Bring to boil and distribute into plates or tubes. Sterilization at 121°C for 15 minutes is optional, but if the medium is to be used on the same day of preparation it needs to be sterilized. But through sterilization may the medium is going to be turbid. No sterilization improves the recovery of the stressed microorganisms.

Other Notes

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.
Recommended by the American Public Health Association (APHA); Studies on coliform bacteria

Legal Information

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


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Storage Class

11 - Combustible Solids

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

548-62-9

CAS No.


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F.I.L./I.D.F., Milchwiss., 29, 602-602 (1974)
J.G. Davis
Milk Testing, 131-131 (1951)
G. Suhren
Milchwiss., 45, 139-139 (1990)