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70439 Sigma-Aldrich

Oxidase Test

for microbiology

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Properties

Related Categories Discs, Strips and Cards, Identification Tests & Reagents, Microbiology More...
grade   for microbiology
shelf life   limited shelf life, expiry date on the label

Description

Application

Oxidase Test is an important differential procedure which should be performed on all gram-negative bacteria that are to be identified. In presence of the enzyme cytochrome oxidase (gram-negative bacteria) the N,N-dimethyl-p-phenylenediamine oxalate and α-naphthol react to indophenol blue.

Other Notes

Same product — same quality — now Sigma-Aldrich brand

Packaging

discs contains N,N-dimethyl-p-phenylenediamine oxalate and α-naphthol

Price and Availability

Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
3

Documents

Certificate of Analysis

Protocols & Articles

Articles

Differentiation of Escherichia coli from coliforms

In August 2008, the discovery of E. coli-contaminated beef in the United States prompted a nationwide recall of beef. The source turned out to be one supplier that had a history of contamination of i...
Jvo Siegrist
AnalytiX Volume 8 Article 5
Keywords: Decarboxylations, Fermentation, Genetic, Indicators, Microbiology, Reductions

EZ-Fit™ Filtration Products for Bioburden Testing

The EZ family of products has been designed to optimize and streamline the bioburden workflow. The family includes:
Keywords: Filtration

Enterobacteriaceae in Food

From our library of Articles, Sigma-Aldrich presents Enterobacteriaceae in Food

Identification of Microorganisms Based on Color

For microbiologists the most fundamental stain was developed in 1884 by the Danish bacteriologist Hans Christian Gram. The Gram Stain allows the determination of morphology, dividing bacteria into tw...
Jvo Siegrist
Microbiology Focus Edition 1.4, Product Manager Microbiology.... ivo.siegrist@sial.com
Keywords: Antibiotics, Enzyme activity, Fermentation, Gram stain, Help, Indicators, 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

On the Trail of Campylobacter

The Campylobacter is one of the leading causes of human gastroenteritis. Common Campylobacter species C. jejuni, C. coli, and C. lari are responsible for most cases of campylobacteriosis1,2. However,...
Jvo Siegrist
AnalytiX Volume 8 Issue 1
Keywords: Antibiotics, Cancer, Citric Acid Cycle, Gram stain, Metabolism, Microbiology, Scanning electron microscopy

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

Staphylococcus aureus: a Spreading Bacteria

Staphylococcus aureus is frequently a part of our skin flora but is also a cause of a broad range of illnesses. Current studies report a remarkable increase of Methicillin Resistant Staphylococcus au...
Jvo Siegrist
AnalytiX Volume 10 Article 2
Keywords: Aerobic, Antibiotics, Clinical, Environmental, Fermentation, Food & Beverage, Microbiology, Respiration

Vibrio Detection

Vibrios are motile, curved or comma-shaped bacilli and have a single polar flagella with sheet proteins. They are often found in open water, freshwater and saltwater. Vibrios are facultative aerobe a...
Jvo Siegrist
Microbiology Focus Edition 1.3
Keywords: Dehydration reaction, Diagnostic, Fermentation, Indicators, Metabolism, Microbiology

Yersinia Diagnostic

Yersinia are rod-shaped, Gram-negative facultative anaerobic bacteria. They exhibit fermentative metabolism and are oxidasenegative, mannitol-positive. A psychrophilic organism, Yersinia survives and...
Ivo Siegrist
Analytix Volume 7 Article 5
Keywords: Anaerobic, Clinical, Diagnostic, Metabolism, Microbiology

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