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30787 Millipore

Deoxyribonuclease Test Agar

for microbiology

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Properties

Related Categories A - M, All Food Control Media (alphabetical), All Solid Media/Agars, Biochemical Identification Media by Test, Biochemical Identification Media, A to Z,
grade   for microbiology
shelf life   limited shelf life, expiry date on the label
composition   agar, 15 g/L
  deoxyribonucleic acid, 2 g/L
  sodium chloride, 5 g/L
  tryptose, 20 g/L
final pH   7.3±0.2 (37 °C)
Featured Industry   Clinical Testing
Food and Beverages
suitability   nonselective and differential for Serratia
  nonselective and differential for Staphylococcus
  nonselective and differential for Streptococcus

Description

General description

Deoxyribonuclease Test Agar is recommended for the detection of deoxyribonuclease activity of bacteria and fungi, and especially for identification of pathogenic Staphylococci.
Bacteria are streaked on to the surface of the agar medium and incubated. The growth on the surface of the agar is then flooded with 1N hydrochloric acid. Polymerised DNA precipitates in the presence of 1N HCl and makes the medium opaque. If the organisms produce DNase enzymes, in sufficient quantity to hydrolyse the DNA, then clear zones are seen around the colonies.

Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
3

Documents

Certificate of Analysis

Protocols & Articles

Articles

EZ-Product Family for Bioburden Testing

The EZ family has been designed to optimize and streamline your bioburden workflow. Ideal for microbiological water, beverage, and medical device testing using the membrane filtration method. The fam...
Keywords: Filtration

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

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

Peer-Reviewed Papers
15

References

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