Biological activity of the non-microbial fraction of kefir: antagonism against intestinal pathogens

@article{Iraporda2017BiologicalAO,
  title={Biological activity of the non-microbial fraction of kefir: antagonism against intestinal pathogens},
  author={Carolina Iraporda and M{\'a}rio Abatemarco J{\'u}nior and Elisabeth Neumann and {\'A}lvaro Cantini Nunes and Jacques Robert Nicoli and Anal{\'i}a G. Abraham and Graciela L. Garrote},
  journal={Journal of Dairy Research},
  year={2017},
  volume={84},
  pages={339 - 345}
}
Kefir is a fermented milk obtained by the activity of kefir grains which are composed of lactic and acetic acid bacteria, and yeasts. Many beneficial health effects have been associated with kefir consumption such as stimulation of the immune system and inhibition of pathogenic microorganisms. The biological activity of kefir may be attributed to the presence of a complex microbiota as well as the microbial metabolites that are released during fermentation. The aim of this work was to… 

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References

SHOWING 1-10 OF 36 REFERENCES

Inhibitory power of kefir: the role of organic acids.

A bacteriostatic effect of milk fermented with kefir grains over E. coli 3 was demonstrated and this inhibitory effect could be assigned to the undissociated form of lactic and acetic acid produced during the fermentation process.

A review: chemical, microbiological and nutritional characteristics of kefir

The microbiological and chemical composition of kefir indicates that it is a very complex probiotic, with Lactobacillus species, generally the predominant microorganisms.

Lactobacillus paracasei CBA L74 Metabolic Products and Fermented Milk for Infant Formula Have Anti-Inflammatory Activity on Dendritic Cells In Vitro and Protective Effects against Colitis and an Enteric Pathogen In Vivo

In vitro and ex-vivo systems found that fermented products can act via the inhibition of immune cell inflammation and can protect the host from pathobionts and enteric pathogens.

Cheese whey fermented with kefir micro-organisms: Antagonism against Salmonella and immunomodulatory capacity

The products with potential application as probiotics obtained by fermentation of whey with kefir micro-organisms represent an alternative to increase whey economic value.

Strong antimicrobial activity of Lactobacillus rhamnosus GG against Salmonella typhimurium is due to accumulation of lactic acid.

It could be concluded that under the growth conditions tested, the strong antimicrobial activity of L. rhamnosus GG against Salmonella was mediated by lactic acid.

Properties and benefits of kefir -A review

A critical revision of the antimicrobial, anti-carcinogenic, probiotic and prebiotic properties of kefir is reviewed, like reducing cholesterol and improving lactose tolerance are also discussed.