Whether you’re thinking about donating a sample, collecting them in the field, or collaborating with a biobank on a research project, one thing is certain: not all microbial samples are created equal.
A “good” microbial sample isn’t just about quantity—it’s about quality, consistency and context. Here’s what our lab team looks for (and appreciates!) when it comes to sample submissions.
Clean Collection = Quality Results
We know—it’s not the most glamorous part of the process, but how a sample is collected plays a huge role in what we can do with it.
What we look for:
- Proper use of the collection kit (sterile tools, labeled containers)
- Minimal contamination with water, soap or other substances
- Clear labeling and documentation
Tips for donors and collectors:
- Follow the instructions closely (we promise they’re there for a reason!)
- Wash your hands before and after collection
- If you contaminate your collection kit, don’t stress! Just let us know and we can provide you with a new one
- Avoid delays between collection and storage
Timing and Temperature Matter
Microbes are living organisms—they don’t love waiting around at room temperature.
Why it matters:
- Delays or improper storage can change the microbial community
- Some fastidious or anaerobic organisms die quickly if not preserved
Best practices:
- Use stabilising agents if provided
- On-site donation is preferred to ensure samples are collected within the designated window
Metadata = Meaningful Microbes
A great sample is only as useful as the information that comes with it. Context helps researchers understand and compare samples across populations and studies.
Useful metadata includes:
- Age, sex, geographic location
- Health status and medical history (if consented)
- Diet, medications and lifestyle factors
- Date and time of collection
Donors and collectors: please don’t skip the form! It makes your contribution exponentially more valuable to science.
Enough Material for Multiple Uses
We often divide a single sample into multiple vials for different purposes: storage, culturing, sequencing and more.
Ideal samples provide:
- Sufficient volume or mass (as recommended in the instructions)
- A homogenous portion—don’t just scoop from the surface
Note: More doesn’t always mean better—but too little can limit future use.
Microbial Viability (Cultivation Is the Goal)
Our aim is to grow microbes from your sample, we need them to be alive and healthy.
What helps:
- Anaerobic handling for oxygen-sensitive species
- Cold-chain transport and quick processing
- Avoiding preservatives that kill microbes (unless the aim is DNA/RNA analysis)
Clear Communication and Consent
Finally, a good sample comes from a well-informed donor or collaborator. We’re all about clarity, transparency and working together.
What we appreciate:
- Informed consent from human donors
- Communication about any deviations or uncertainties
- Collaboration in resolving sample issues or follow-ups
In Summary: A Good Microbial Sample Is…
- Collected cleanly and correctly
- Stored and transported promptly
- Rich in context and metadata
- Sufficient in size
- Alive
- Donated with informed consent
Your effort on the front end makes a huge difference in what we can achieve on the research end.
Got Questions?
Whether you’re prepping a donation, planning a study or just curious about what happens after collection—we’re here to help. Get in touch at admin@ahmb.com.au, and let’s make your microbial contribution count.
If you haven’t already, and you’re interested in becoming a donor, please visit Get Involved to register.
Stay tuned for updates as we expand the AHMB by following our LinkedIn, X or Bluesky.
