Research that shows freshness of a postbiotic matters, how it affects on efficacy!

Research indicates that the freshness of postbiotics, defined as inanimate microorganisms and/or their components, such as short-chain fatty acids (SCFAs), teichoic acids, and cell wall fragments,  significantly impacts their efficacy, as degradation over time or under suboptimal storage conditions reduces key bioactive compounds essential for health benefits 2 10. For example, heat-sensitive components (e.g., antimicrobial peptides and SCFAs) degrade at temperatures above 30°C, diminishing immunomodulatory and barrier-enhancing effects critical for conditions like diarrhea or immune dysfunction 4 8.

Clinical evidence demonstrates that fresh postbiotic preparations (e.g., inactivated Lactobacillus LB) shorten rotavirus diarrhea duration by 40% in children, whereas aged or improperly stored equivalents lose potency due to metabolite breakdown 4.

Additionally, storage stability is compromised by humidity, light, and enzymatic activity (e.g., pepsin in the gut), with optimal efficacy requiring pH 4–9 and protection from thermal fluctuations 8 10.

Though postbiotics generally retain efficacy for 12–24 months under ideal conditions, their bioactive integrity depends on rigorous production standards and cool, dark storage to prevent irreversible loss of function 6 10.

REFERENCES

2 Postbiotics and Their Potential Applications in Early Life Nutrition and Beyond

10 The International Scientific Association of Probiotics and Prebiotics (ISAPP) consensus statement on the definition and scope of postbiotics

4 The clinical evidence for postbiotics as microbial therapeutics

8 Postbiotics: From emerging concept to application

6 Unlocking the power of postbiotics: A revolutionary approach to nutrition for humans and animals