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17215

Millipore

WL-Differenzial-Agar

suitable for microbiology, NutriSelect® Plus

Synonym(e):

WLD-Agar, Wallerstein Differential-Agar

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About This Item

UNSPSC-Code:
41171606
NACRES:
NA.74

Sterilität

non-sterile

Qualitätsniveau

200

Form

powder

Haltbarkeit

limited shelf life, expiry date on the label

Zusammensetzung

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

Hersteller/Markenname

NutriSelect® Plus

Methode(n)

microbiological culture: suitable

pH-Endwert

5.5±0.2 (25 °C)

Anwendung(en)

bioburden testing
food and beverages
microbiology

Eignung

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

Verwandte Kategorien

Allgemeine Beschreibung

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.

Anwendung

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

Angaben zur Herstellung

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.

Fußnote

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.

Rechtliche Hinweise

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

Lagerklassenschlüssel

11 - Combustible Solids

WGK

WGK 3

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

Eyeshields, Gloves, type N95 (US)

Choose from one of the most recent versions:

Analysenzertifikate (COA)

Lot/Batch Number
BCCF6240
BCCD3627
BCCB9828
BCCB1576
BCBX8508

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If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

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A differential procedure for bacteriological studies useful in the fermentation industry
Green SR and Gray PP
Archives of Biochemistry and Biophysics, 32(1), 59-69 (1951)
Interactions between Kluyveromyces marxianus and Saccharomyces cerevisiae in tequila must type medium fermentation
Lopez CLF, et al.
World Journal of Microbiology & Biotechnology, 30(8), 2223-2229 (2014)

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