Fermented food consumption modulates the oral microbiota

Maria Ibarlucea-Jerez (1, 2) , Magali Monnoye (3) , C. Chambon (4, 5) , P. Gérard (3) , Hélène Licandro (6) , Eric Neyraud (1)

1 CSGA - Centre des Sciences du Goût et de l'Alimentation [Dijon]
2 PAM - Procédés Alimentaires et Microbiologiques [Dijon]
3 MICALIS - MICrobiologie de l'ALImentation au Service de la Santé
4 PFEM-CP - Plateforme Exploration du Métabolisme-Composante Protéomique
5 QuaPA - Qualité des Produits Animaux
6 AFIM - Aliment, Fermentation, Interaction, Microbiote

Fermented food consumption is recommended for health and environmental purposes. While it is known to impact gut microbiota, further investigation is needed to establish connections with the oral microbiota. For this purpose, we investigated the effect of daily consumption of a model cheese containing 3 Lactic Acid Bacteria (LAB) species on the oral microbiota of rats following a 3-week diet. Cheese consumption transiently modifies the oral microbiota and leads to a transient persistence of LAB in the oral cavity of 1/3 of the animals. The origin of this variability was partly explained by an overrepresentation of salivary proteins involved in the response to oxidative stress in animals without LAB persistence. These findings highlight the significance of fermented foods in shaping the diversity of the oral microbiota. Additionally, they suggest that variations in the salivary proteome among individuals may influence the permissiveness of the oral microbiota towards exogenous microorganisms.

Keywords: Fermented food; Microbiome; Protein–protein interaction networks

Domains: Food engineering

Maria Ibarlucea-Jerez, Magali Monnoye, C. Chambon, P. Gérard, Hélène Licandro, et al.. Fermented food consumption modulates the oral microbiota. npj Science of Food, 2024, 8 (1), pp.55. ⟨10.1038/s41538-024-00298-3⟩. ⟨hal-04681459⟩