WL Differential Agar, for microbiology

Code: 17215-500g D2-231

Application

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

Footnote

We offer two media types...


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£96.10 500G
£115.32 inc. VAT
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Application

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

Footnote

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.

General description

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. WL Differential Agar helps in selective isolation and enumeration of bacteria encountered in breweries and industrial fermentations.

Legal Information

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

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

Preparation Note

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.

application(s)microbiology, bioburden testingfood and beverages
compositionactidione (cycloheximide), 0.004 g/L, potassium chloride, 0.425 g/L, ferric chloride, 0.0025 g/L, bromocresol green, 0.022 g/L, dextrose, 50 g/L, monopotassium phosphate, 0.55 g/L, casein enzymic hydrolysate, 5 g/L, magnesium sulfate, 0.125 g/L, calcium chloride, 0.125 g/L, agar, 20 g/L, yeast extract, 4 g/L, manganese sulfate, 0.0025 g/L
final pH5.5±0.2 (25 °C)
formpowder
manufacturer/tradenameNutriSelect® Plus
Quality Level200
shelf lifelimited shelf life, expiry date on the label
sterilitynon-sterile
suitabilityselective and differential for Proteus spp., selective and differential for coliforms, selective and differential for Escherichia coli, selective and differential for bacteria (General Media), selective and differential for Lactobacillus spp.
technique(s)microbiological culture: suitable
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