Merck
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17215

Millipore

WL Differential Agar

suitable for microbiology, NutriSelect® Plus

Synonym(s):
WLD Agar, Wallerstein Differential Agar
NACRES:
NA.74

esterilidad

non-sterile

Nivel de calidad

200

formulario

powder

caducidad

limited shelf life, expiry date on the label

composición

actidione (cycloheximide), 0.004 g/L
agar, 20 g/L
bromocresol green, 0.022 g/L
calcium chloride, 0.125 g/L
casein enzymic hydrolysate, 5 g/L
dextrose, 50 g/L
ferric chloride, 0.0025 g/L
magnesium sulfate, 0.125 g/L
manganese sulfate, 0.0025 g/L
monopotassium phosphate, 0.55 g/L
potassium chloride, 0.425 g/L
yeast extract, 4 g/L

manufacturer/tradename

NutriSelect® Plus

technique(s)

microbiological culture: suitable

pH final

5.5±0.2 (25 °C)

application(s)

bioburden testing
food and beverages

microbiology

idoneidad

selective and differential for Escherichia coli
selective and differential for Lactobacillus spp.
selective and differential for Proteus spp.
selective and differential for bacteria (General Media)
selective and differential for coliforms

Related Categories

Descripción general

WL (Wallerstein Laboratory) Differential Agar, modified is formulated as described by Green and Gray for the examination of materials encountered in brewing and for industrial fermentations containing mixed flora of yeasts and bacteria.[1] WL Differential Agar helps in selective isolation and enumeration of bacteria encountered in breweries and industrial fermentations.

Aplicación

WL Differential Agar has been used for the enumeration of Kluyveromyces marxianus culture.[2]

Nota de preparación

Suspend 80.26 g in 1 litre distilled water. Boil to dissolve the medium completely. Sterilize by autoclaving at 121°C for 15 minutes. If desired, to obtain a pH of 6.5, add 1% solution of sodium bicarbonate.

Nota al pie de página

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.

Información legal

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

Código de clase de almacenamiento

11 - Combustible Solids

WGK

WGK 3

Punto de inflamabilidad F

Not applicable

Punto de inflamabilidad C

Not applicable

Equipo de protección personal

Eyeshields, Gloves, type N95 (US)

Certificate of Analysis

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Certificate of Origin

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