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D3435 Sigma-Aldrich

Dey-Engley neutralizing broth

for microbiology

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Properties

Related Categories A - M, All Liquid Media/Broths, Bacillus, Bacteria (General Media), Disinfectants Testing,
grade   for microbiology
shelf life   limited shelf life, expiry date on the label
final pH   7.6±0.2 (25 °C)
storage temp.   2-8°C
suitability   nonselective for Bacillus
  nonselective for Bacteria (General Media)
  nonselective for Escherichia coli and Coliforms
  nonselective for Pseudomonas
  nonselective for Salmonella
  nonselective for Staphylococcus

Description

Components

Ingredients (g/L)
Casein enzymatic hydrolysate 5.00
Yeast extract 2.50
Dextrose 10.00
Sodium thiosulfate 6.00
Sodium thioglycollate 1.00
Sodium bisulfite 2.50
Lecithin 7.00
Polysorbate 80 5.00
Bromocresol purple 0.02

Application

Dey-Engley Neutralizing Broth is used in disinfectant testing where neutralization of the antiseptics and disinfectants is important for determining bactericidal activity.

Other Notes

Same product — same quality — now Sigma-Aldrich brand

Price and Availability


Sterifil Aseptic System and Holder
Safety & Documentation

Safety Information

Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
3

Documents

Certificate of Analysis

Protocols & Articles

Articles

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 environment, microbes have adapted to the habitats most suitable for thei...
Keywords: Culture media, Digestions, Environmental, Filtration, Growth factors, Indicators, Microbiology, Phase transitions, Precipitation, Vitamins

Pseudomonas Media and Tests

Pseudomonas are motile (one or more polar flagella), rod shaped and aerobe Gram-negative bacteria. They are found almost everywhere, in soil, water, plants and animals. In most cases it is not pathog...
Jvo Siegrist, Product Manager Microbiology, ivo.siegrist@sial.com
Analytix Volume 2007 Article 5
Keywords: Anaerobic, Antifungals, Biochemistry, Cosmetics, Diagnostic, Environmental, Fermentation, Glycolysis, Metabolism, Metabolites, Microbiology, Pentose phosphate pathway, Pharmaceutical, Respiratory

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