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October 2019

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Subject:
From:
Gopi Patel <[log in to unmask]>
Reply To:
The Pharmaceutical Microbiology Forum Email List <[log in to unmask]>
Date:
Wed, 9 Oct 2019 18:32:59 +0000
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Hello Angela,
Same dilution might not work for enrichment step. I am having similar issues. I am not able to recover Candida albican for a lot of BPO products even using 1:100 or 1:1000 Dilution. 

Has anyone ran into similar problem? If so, What did you do to recover the organisms? 

-----Original Message-----
From: The Pharmaceutical Microbiology Forum Email List [mailto:[log in to unmask]] On Behalf Of Timothy Cser
Sent: Wednesday, October 9, 2019 7:23 AM
To: [log in to unmask]
Subject: Re: [PMFLIST] USP 61/USP 62 Testing

Hi Angela.  USP 61 is the standard for sample prep in USP 62.  There are additional enrichment steps in USP 62.......what organisms are you having issues recovering?  Is this just growth promotion or method suitability?

Sincerely,

Tim Cser
MilliporeSigma

-----Original Message-----
From: The Pharmaceutical Microbiology Forum Email List <[log in to unmask]> On Behalf Of Housel, Mariangela
Sent: Wednesday, October 9, 2019 5:27 AM
To: [log in to unmask]
Subject: [PMFLIST] USP 61/USP 62 Testing

Good Morning everyone- I have a question regarding the sample prep. for USP 61 and USP 62.  Having some issue with USP 62 and no recovery of some of the organisms but USP 61 is working.  I would expect that the same sample prep. (starting dilution) should work for both USP 61 and 62.  Is this the wrong assumption?


Thanks-


Angela Housel
Senior Quality Specialist

(585) 338-5901 (Office)

Email: [log in to unmask]<mailto:[log in to unmask]>



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