In shortPostbiotics are a group of materials that utilize heat-killed cells (inactivated), cell components, and fermentation metabolites. Unlike probiotics, which handle live bacteria, their high stability and ease of handling draw attention as raw materials.
Difference from probiotics
Whereas probiotics deliver “live bacteria,” postbiotics use inactivated cells and components. Since live-cell viability management is unnecessary, they offer superior stability in manufacturing and distribution.
Selection points as a raw material
Confirm the strain, cell count (spec), evidence, and stability. Fermentation-derived materials (fermented GABA, fermented N-acetylglucosamine, etc.) are also drawing interest as broadly defined fermentation materials.
Related: Functional ingredients
FAQ
Are postbiotics safe?
They use inactivated cells/components, so live-cell viability management is unnecessary and stability is high. Confirm safety documents per use.
Is the cell-count spec important?
Depending on product design and claims, managing the cell amount specification becomes important.
Do fermentation materials count?
Broadly, fermentation metabolites are related. Confirm the definition and spec for each material.