QC microbiology
Bring me your questions about bioburden, sterility testing, or environmental monitoring. We can talk through the application and the product information your team needs.
MilliporeSigma ↗ QC Microbiology
Melissa Reuck.
Regional Commercial Applications Specialist
I help QC microbiology teams with testing applications, product questions, and technical training.
Looking for a product? Browse BioM productsAbout Melissa
I started in the lab.
Before joining MilliporeSigma, I worked in pharmaceutical microbiology and quality at Pfizer and Mallinckrodt. My roles included testing, microbiology supervision, aseptic compliance, inspection readiness, and global vendor quality.
Today, I work with QC microbiology customers on testing applications and technical training. Tell me what your team needs help with, and we can take it from there.
More about my work on LinkedInMy work & education
Roles and education, at a glance.
Commercial applications2025–present
Regional Commercial Applications Specialist
I work with QC microbiology customers on testing applications and technical training.
Vendor quality & microbiology2014–2025
Global PharmSci Vendor Quality Manager
Earlier roles included aseptic compliance, inspection readiness, microbiology supervision, and technical support.
QC microbiology2008–2014
Lab Analyst III, Microbiology
Mallinckrodt Pharmaceuticals
Early laboratory experienceEarly career
Microbiology
Johnson & Johnson
Early laboratory experienceEarly career
Molecular biology
Monsanto
Molecular Biology · Bachelor’s degree2003–2007
Bachelor’s degree in Molecular Biology
Blackburn College, Illinois
My work
What I can help with
For product information and technical resources, these links take you to the MilliporeSigma website.
Quality & compliance
My background includes aseptic compliance, inspection readiness, and vendor quality. I understand that a testing decision has to work for the laboratory and the people responsible for manufacturing and quality.
Applications & training
Tell me the testing method, who will attend, and what your team wants to learn. We can discuss training that gives people time to ask questions and work through the application.
Biomonitoring
BioM products I support
Find the equipment, media, or sampling supplies we discussed. Browse by application, or search by product name.
All BioM products
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9 products
Bioburden testing
A membrane filtration system for bioburden testing in pharmaceutical and cosmetics applications. The workflow brings sample filtration, membrane transfer, and culture media together in one system.
View on Sigma-AldrichBioburden testing
A fluorescence-based system for rapid microbial detection after membrane filtration. Its non-destructive approach allows detected microorganisms to be recovered for further identification.
View on Sigma-AldrichBioburden testing
Membrane filtration units and equipment for routine microbial testing. The EZ product family includes filtration units, manifolds, pumps, and membranes for different laboratory workflows.
View on Sigma-AldrichSterility testing
Pumps for closed-system sterility testing with Steritest filtration devices. LFH, ISL, and FLEX configurations support different testing setups, including hoods and isolators.
View on Sigma-AldrichSterility testing
Closed membrane filtration devices for filtering, rinsing, adding media, and incubating sterility-test samples. Steritest NEO options accommodate different sample containers and product characteristics.
View on Sigma-AldrichEnvironmental monitoring
Ready-to-use contact and settle plates for monitoring cleanroom environments. The culture media portfolio includes irradiated, packaged options for critical sterile-production areas.
View on Sigma-AldrichEnvironmental monitoring
A ready-to-use sampling system for qualitative detection of microbial contamination on dry surfaces. Useful for hard-to-access locations such as filling needles and tubing in cleanrooms and isolators.
View on Sigma-AldrichMedia fill / APS
Granulated dehydrated culture media for media fill trials and aseptic process simulation. Options include tryptic soy broth and non-animal-origin formulations for preparing media in your facility.
View on Sigma-AldrichMedia fill / APS
Sterile, ready-to-use liquid culture media for media fill trials. Tryptic soy broth and vegetable peptone broth options are available in bags, with different configurations for your process.
View on Sigma-AldrichNo matching products
Try “Oasis,” “swabs,” or “media fill.” You can also email me if you need a hand.
Links open on Sigma-Aldrich in a new tab. Some lead to a product family or technical overview; email me if you need help finding a specific item.
Following up
Following up after an event?
If a question came to mind after we spoke, send me a note. Include the event name and a quick reminder of what we discussed.
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Speaking
Events & training
I enjoy meeting the people doing this work, hearing what’s happening in their labs, and making time for questions. You may find me at a training session or an industry event.
Technical Decisions That Shape APS Outcomes
A session on the agenda for A Full Plate and Then Some: The Real Work of QC Micro, a QC microbiology symposium in Raleigh, North Carolina.
See the event agendaContact
What can I help you with?
Email me about your application, call with a question, or save my details for later. I’d be happy to hear from you.