Pharmaceutical Micro

How Certified Reference Materials Help Labs Meet Regulatory Requirements

As regulatory standards continue to increase, additional responsibility is being placed on laboratories to ensure the quality and safety of finished products. Now more than ever, traceability is a major concern. Laboratories are required to provide evidence that the reference…
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Dear Stanley: Tips for Maintaining Fastidious Microorganisms

Dear Stanley, I’m having a tough time keeping my stock culture of Campylobacter viable. Do you have any tips for maintaining a stock culture of fastidious microorganisms like Campylobacter? Sincerely, Jordan from Mankato, MN Dear Jordan, Maintaining fastidious microorganisms, such…
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8 Best Practices for Growth Promotion Testing

The growth promotion test (GPT) can be a hassle, but it’s necessary for determining if a new batch of media is acceptable. Follow our best practices below to make your testing process as smooth as possible when using Microbiologics products…
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Dear Stanley: What is Mean Assay Value?

Dear Stanley, I use EZ-Accu Shot™ for growth promotion testing (GPT), and sometimes I don’t get counts within 50-200% of the count printed on the label. Is there something wrong with my media or the control?  Sincerely, Beverly Fresno, CA…
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How to Maintain Monthly Working Stock Cultures with Microbiologics QC Strains

Proper maintenance of quality control strains is essential for ensuring acceptable performance.  Most strains produced by Microbiologics can be used for up to a month after reconstitution when correctly maintained. Follow these best practices and our maintenance plan below to…
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Dear Stanley: Differences Between Atmospheres for Microorganism Growth

Dear Stanley, I want to make sure I’m using the right atmosphere to get good growth of my microorganisms. Can you explain the differences between aerobic, anaerobic, microaerophilic, and capnophilic atmospheres for microorganism growth? Beth from Salt Lake City, UT Dear…
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Relax During #LabWeek with These 9 Stress Relievers

You love being a microbiologist. Your passion for understanding microorganisms and the impact they have on every aspect of life fuels your long days in the lab. We know all too well that a busy lab and finicky microorganisms can…
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Non-Sterile Pharmaceuticals: Next Steps After Finding an Environmental Isolate

You’ve identified an organism in your environment. Now what? If you work in a non-sterile pharmaceutical manufacturing laboratory, chances are you’ve encountered this question. You know environmental monitoring doesn’t stop at detection, but what are the correct next steps to…
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Environmental Isolate Case File: Corynebacterium spp.

Everyone has heard of diphtheria, but this familiar infection caused by a Corynebacterium strain isn’t the only illness laboratories should be concerned about. Sterile manufacturing facilities should also be on the lookout for non-diphtherial Corynebacterium. These strains, commonly found in…
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11 Pour Plate Method Best Practices

The pour plate method is an economical way for pharmaceutical, contract and even food laboratories to perform tests focused on a specific number of bacteria. The process may seem simple (melt, pipette, pour, swirl, incubate), but errors have been known…
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