Why do so many promising biotech ideas stall long before they reach the clinic or marketplace? For many, the answer lies hidden in the earliest phase of bioprocess development: upstream processing. It’s where strain selection, media optimization, and culture conditions set the stage for everything that follows. Yet, the smallest missteps here can snowball into expensive roadblocks downstream. This episode of Smart Biotech Scientist Podcast zeros in on why smart screening strategies and the right bioreactor choices early on are the difference between breakthrough and bottleneck.

Joining host David Brühlmann is Sebastian Blum, a microbiologist with more than two decades in the life sciences. As Market Development Manager at Beckman Coulter Life Sciences, Sebastian Blum brings firsthand knowledge from collaborating with startups, pharma giants, and CDMOs, bridging theory with the practical realities of modern process development. From commercializing micro-fermentation systems to guiding clients through high-throughput data, his insights come not just from research but real-world applications.

Key Topics & Insights:

• How startups versus large pharma companies differ in process development strategies, including the role of budget, resources, and risk management. (04:27)
• The importance of designing screening experiments that mirror end-process conditions, and misconceptions around batch versus fed-batch modes. (07:49)
• Overview of available small-scale bioreactor systems: shake flasks, benchtop reactors, and high-throughput platforms—pros, cons, and ideal use cases. (09:17)
• Detailed comparison of BioLector XT Microbioreactor, ambr® 15, and ambr® 250 systems, including working volumes, experiment throughput, measurement technology, and cell types suited for each. (13:24)
• Practical guidance on making the most of high-throughput screening tools and how training, scripting, and collaboration help new users get value from systems like the BioLector XT Microbioreactor. (17:00)

This episode offers grounded advice for scientists and founders navigating early-stage bioprocess development, plus a clear look at the technology landscape for microbial screening and optimization. Perfect for those looking to streamline process development and avoid common pitfalls.

Connect with Sebastian Blum:

LinkedIn: www.de.linkedin.com/in/sebastian-blum-76240b3b

Beckman Coulter Life Sciences: www.beckman.com

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