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February 2020

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Subject:
From:
jake vanmai <[log in to unmask]>
Reply To:
The Pharmaceutical Microbiology Forum Email List <[log in to unmask]>
Date:
Fri, 31 Jan 2020 19:14:14 -0500
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text/plain
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For optimal recovery R2A is best to incubate at 30-35C for 5-7 days 

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> On Jan 31, 2020, at 2:59 PM, Mcnamara, Barry <[log in to unmask]> wrote:
> 
> ´╗┐All:
> 
> I am seeking additional references/clarification for incubation temp and time for optimal recoveries of BCC orgs from manufacturing bulk water samples (if present) when using R2A plate media in conjunction with membrane filtration only. EP monograph for Water, Purified .0008 describes a minimal incubation time of 3 days at 30-35C whereas guidance from Standard Method for Examination of water/wastewater 9213E recommends incubation at 35C for minimum 48 h but with option for 20-28C for 5-7 days for optimal recovery (i.e. highest quantitative counts for HPCs in general). Which of these two options should be applied for use in recovery specifically for BCC orgs?
> 
> Barry P. McNamara, Ph.D.
> 
> 
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The PMFList (http://microbiologynetwork.com/pmflist.asp) is operated from
The Microbiology Network (http://microbiologynetwork.com) and supported by
our sponsors 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.
If your company would be interested in sponsoring this community, please contact [log in to unmask]



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

Charles River Laboratories - http://www.criver.com/

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

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

BD Industrial Media - http://www.bd.com/ds/

Boston Analytical http://www.bostonanalytical.com/

Associates of Cape Cod, Inc. - http://www.acciusa.com/


=================================
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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