Probiotics, prebiotics and what they actually do
Speaker:
Atte von Wright, Professor Emeritus, Scientific Advisor at Biosafe
From definitions to evidence: how different microbiome-targeting approaches work in practice.
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The concept and modern definition of probiotics
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Examples of successful probiotics and their documented effects
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Screening and selection of potential probiotic strains
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Prebiotics, synbiotics and postbiotics: mechanisms and use cases

Update your knowledge and sign up for the webinar March 19, 2026
10 AM EET (Eastern Europe)
9 AM CET (Central Europe)
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Introduction
Biosafe's webinars are open and free for everyone interested in regulatory, safety or scientific issues surrounding regulated microbial products used in food and feed. Our webinars promote discussions, educate professionals and bring out interesting technologies or standards in the field. We welcome your ideas for future topics too.
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Program and schedule
8.55 AM CET (Central Europe)
Welcome and webinar instructions.
Please join the webinar to make sure the connection works.
9.00 - 10.00 AM CET (Central Europe)
Probiotics, prebiotics and what they actually do
Speaker:
Atte von Wright, Professor Emeritus, Scientific Advisor at Biosafe
Over the past decade, our understanding of the composition and functions of the human gastrointestinal microbiota has advanced rapidly. We know now that gut bacteria influence host functions both directly and via their metabolites. These insights are reshaping how probiotics, postbiotics (non-viable microbes or their components), and prebiotics are understood, assessed, and developed.
The consumption of live or even dead bacteria to improve human or animal health and wellbeing is increasingly supported by solid scientific evidence, while also raising new questions for safety assessment, efficacy, and regulation. In parallel, new insights into prebiotics, substrates that selectively promote the growth or activity of beneficial microbial groups, are helping to better define their role in the microbiome and in health outcomes.
In this webinar series, Biosafe brings a scientific and regulatory perspective to the evolving microbiome landscape. We explore what current research really tells us, where uncertainties remain, and what companies need to consider when developing and introducing new probiotic, prebiotic, or postbiotic formulations for food, feed, or supplements.
Webinar 2/3: Probiotics, prebiotics and what they actually do
From definitions to evidence: how different microbiome-targeting approaches work in practice.
-
The concept and modern definition of probiotics
-
Examples of successful probiotics and their documented effects
-
Screening and selection of potential probiotic strains
-
Prebiotics, synbiotics and postbiotics: mechanisms and use cases
Organized by:
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More information:
Pauliina Halimaa, Managing Director, Biosafe