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Subject:
From:
Shweta Bajoria <[log in to unmask]>
Reply To:
The Pharmaceutical Microbiology Forum Email List <[log in to unmask]>
Date:
Wed, 29 Jul 2020 21:44:17 +0530
Content-Type:
text/plain
Parts/Attachments:
text/plain (198 lines)
One more thing I want to ask here, whenever it is written compared with
previously tested and approved batch of medium, does it mean gpt should be
run parallel with new batch of media and a older batch?
Regards


On Wed, 29 Jul 2020, 08:29 Pharma Nexus, <[log in to unmask]> wrote:

> Dear sir,
> USP <61>
> Liquid media are suitable if clearly visible growth of the microorganisms
> comparable to that previously
> obtained with a previously tested and approved batch of medium occur.
> We have to confirm just growth observed or not.
> For liquid media not required to test in duplicate.
>
> Regards
> Krishna Kharat
>
> On Mon 13 Jul, 2020, 20:45 Tony Cundell, <[log in to unmask]> wrote:
>
> > Pravin,
> >
> > The USP <61> states the following:
> >
> > Growth Promotion of the Media
> > Test each batch of ready-prepared medium and each batch of medium
> prepared
> > either from dehydrated medium or from the ingredients described.
> > Inoculate portions/plates of *Soybean–Casein Digest Broth* and
> > *Soybean–Casein
> > Digest Agar* with a small number (not more than 100 cfu) of the
> > microorganisms indicated in Table 1 <
> > https://online.uspnf.com/uspnf#C61-TB1>,
> > using a separate portion/plate of medium for each. Inoculate plates of
> > *Sabouraud
> > Dextrose Agar* with a small number (not more than 100 cfu) of the
> > microorganisms indicated in Table 1 <
> > https://online.uspnf.com/uspnf#C61-TB1>,
> > using a separate plate of medium for each. Incubate according to the
> > conditions described in Table 1 <https://online.uspnf.com/uspnf#C61-TB1
> >.
> >
> > When using the test we use a single plate for membrane filtration test,
> > duplicate plated for a pour plate test and three or five tubes for a MPN
> > test. However, the section of the chapter does not specify the same
> number
> > of plates or tubes as in the test so using one plate or tube for growth
> > promotion testing would meet the requirements of the test.
> >
> > Tony
> >
> > On Sun, Jul 12, 2020 at 2:48 PM Pravin Patel <[log in to unmask]>
> > wrote:
> >
> > > Dear team ,
> > >
> > > I have a question regarding growth promotion test of liquid media .
> > >
> > > Is there any guidelines which suggest  to perform growth promotion test
> > of
> > > liquid media in duplicate tubes ?
> > >
> > > Pravin Patel
> > >
> > > 9601817730
> > >
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> > >
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> > >
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> > >
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> > >
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> > >
> > >
> > > =================================
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> >
> > Charles River Laboratories -
> > https://www2.criver.com/l/60962/2020-03-27/h6jqv6
> >
> > Veltek Associates, Inc - http://www.sterile.com
> >
> > Microbiologics, Inc. - http://www.microbiologics.com
> >
> > BD Industrial Media - http://www.bd.com/ds/
> >
> > Associates of Cape Cod, Inc. - http://www.acciusa.com/
> >
> >
> > =================================
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>
>
>
> Steris - http://www.sterislifesciences.com/
>
> Charles River Laboratories -
> https://www2.criver.com/l/60962/2020-03-27/h6jqv6
>
> Veltek Associates, Inc - http://www.sterile.com
>
> Microbiologics, Inc. - http://www.microbiologics.com
>
> BD Industrial Media - http://www.bd.com/ds/
>
> 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 PMF or the sponsors of the
> list.
>

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The PMFList is 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 - https://www2.criver.com/l/60962/2020-03-27/h6jqv6

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

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

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

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 PMF or the sponsors of the list.

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