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17215 Millipore

WL Differential Agar

for microbiology

Synonym: WLD Agar, Wallerstein Differential Agar

Purchase

Properties

Related Categories All Solid Media/Agars, Bacteria (General Media), Escherichia coli & Coliforms, Lactobacillus, Media by Application,
grade   for microbiology
shelf life   limited shelf life, expiry date on the label
composition   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
final pH   5.5±0.2 (25 °C)
Featured Industry   Food and Beverages
suitability   selective and differential for Bacteria (General Media)
  selective and differential for Escherichia coli and Coliforms
  selective and differential for Lactobacillus
  selective and differential for Proteus

Description

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.

Application

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

Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
3

Documents

Certificate of Analysis

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Protocols & Articles

Articles

Culture Media and Tests for Beverage Testing

Spoilage organism testing is a crucial step within the beverage industry to enable the safe release of drinks to the market. Requirements can vary from industry to industry, depending on different sp...
Keywords: Culture media, Fermentation, Magnetic resonance spectroscopy

Culture Method for Quality Control of Beer

Traditional methods are based morphology, staining methods, enzyme reactions (metabolism) and diverse media. One of the first steps is the filtration of the beer followed by an incubation of the filt...
Jvo Siegrist
Microbiology Focus Edition 1.4
Keywords: Fermentation, Filtration, Magnetic resonance spectroscopy, Metabolism, Microbiology

Microbiological Media and Detection

Molecular biology-based methods, like PCR, can be used for lactobacilli detection. However, they are often quite expensive. Sigma-Aldrich provides a revolutionary molecular biology method that is rap...
Chloe McClanahan
BioFiles Edition 6.2
Keywords: Amplification, Anaerobic, Antimicrobials, Magnetic resonance spectroscopy, Molecular biology, Nucleic acid hybridization, Polymerase chain reaction, Reductions

Microbiology Introduction

An initial aim of all microbiologists is the reproducible growth of their microbial cultures, no matter whether the microorganisms are of natural origin or have been genetically engineered by man. Re...
Keywords: Absorption, Aerobic, Anaerobic, Antibiotics, Antimicrobials, Buffers, Culture media, Diffusion, Environmental, Filtration, Genetic, Growth factors, Metabolism, Phase transitions, Precipitation, Reductions, Respiration, Sample preparations, Vitamins

Microbiology Theory: Media Preparation

Microorganisms need nutrients, a source of energy and certain environmental conditions in order to grow and reproduce. In the natural environment, microbes have adapted to the habitats most suitable ...
Keywords: Culture media, Digestions, Environmental, Filtration, Growth factors, Indicators, Microbiology, Phase transitions, Precipitation, Vitamins

Probiotics and Human Health

At the beginning of the 20th century, probiotics were thought to have a beneficial effect to the host by improving the intestinal microbial balance. Through his studies and observations, the Russian ...
Chloe McClanahan
BioFiles Edition 6.2
Keywords: AGE, Absorption, Adhesion, Amplification, Anaerobic, Antimicrobials, Cancer, Carcinogens, Cell proliferation, Chromatography, Coagulation, Detoxification, Diagnostic, Diseases, Enzyme activity, Fermentation, Gas chromatography, Gastrointestinal, High performance liquid chromatography, Inflammation, Magnetic resonance spectroscopy, Metabolism, Metabolites, Molecular biology, Nucleic acid hybridization, PAGE, Pharmaceutical, Phosphorylations, Polymerase chain reaction, Prebiotics, Probiotics, Reductions, Respiratory, Sequencing, Thin layer chromatography, Titrations

Peer-Reviewed Papers
15

References

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