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September 2012

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The Pharmaceutical Microbiology Forum Email List <[log in to unmask]>
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Thu, 27 Sep 2012 22:38:55 +0200
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Hi Aparna. Typically the catalase reagent (H2O2) is a 3% concentration. 
Tim Cser
EMD Millipore Microbiology
Cell 916-759-1401


----- Original Message -----
From: aparna jagadale [[log in to unmask]]
Sent: 09/27/2012 02:35 PM ZE5B
To: [log in to unmask]
Subject: [PMFLIST] Catalase test



Dear forum mebers,

In USP35 NF 30, general chapter<2022>, test for absence of Clostridium
species says catalase test to be done using "dilute hydrogen peroxide
solution".Can anyone please guide "dilute" means what is the percentage
concentration of hydrogen peroxide to use?
Also, what percentage of hydrogen peroxide is generally recommended for
catalse test of anaerobes.

Regards,
Aparna Jagadale

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The PMFList (http://microbiol.org/PMFList_info.htm) is operated from
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our sponsors (http://microbiol.org/sponsor.htm) as a service to
the scientific community.

Please take a second to visit our sponsors' web sites and say thank you for their support of this service.

Accugenix - http://www.accugenix.com

American Type Culture Collection - http://www.atcc.org

BD Diagnostic Systems - http://www.bd.com/ds/

Biolog - http://www.biolog.com

Biomerieux - http://industry.biomerieux-usa.com

EMD Millipore -  http://bit.ly/Udi4CP

MicroBioLogics, Inc. - http://www.microbiologics.com

Pall - http://www.pall.com

NovaTek International - http://www.ntint.com

Rapid Micro Biosystems - http://www.rapidmicrobio.com  (formerly GPS)

Steris - http://www.sterislifesciences.com/

Veltek Associates, Inc - http://www.sterile.com

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The nature of this service is to provide a medium for communication.  The specific statements and endorsements of individuals participating in the discussions are not necessarily those of The Microbiology Network, Inc., the PMF, or the sponsors of the list.

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