期刊
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
卷 60, 期 32, 页码 7917-7927出版社
AMER CHEMICAL SOC
DOI: 10.1021/jf302245m
关键词
probiotic; dairy propionibacteria; immunomodulation; pig; intestinal barrier
资金
- Conseil Regional de Bretagne through the CRITT Sante (Prodico)
- Conseil Regional de Bretagne through CBB developpement (Profusion)
- Centre National Interprofessionnel de l'Economie Laitiere (CNIEL) through the Syndifrais Scientific Committee
- Agence Nationale pour la Recherche (ANR) through the SURFING [ANR-10-ALIA-016]
Dairy propionibacteria, including Propionibacterium freudenreichii, display promising probiotic properties, including immunomodulation. These properties are highly strain-dependent and rarely studied in a fermented dairy product. We screened 10 strains, grown in a newly developed fermented milk ultrafiltrate, for immunomodulatory properties in vitro. The most anti-inflammatory strain, P. freudenreichii BIA129, was further tested on piglets. P. freudenreichii-fermented product improved food intake and growth of piglets. Colonic mucosa explants of treated pigs secreted less interleukin 8 (-25%, P < 0.05) and tumor necrosis factor alpha (-20%, P < 0.05), either in basal conditions or after a lipopolysaccharide challenge. By contrast, the gut structure, barrier function (measured ex vivo in Ussing chambers), microbial diversity (assessed by 16S rRNA pyrosequencing), and colonic short-chain fatty acid content were unchanged, assuming maintenance of normal intestinal physiology. In conclusion, this work confirms in vivo probiotic properties of dairy propionibacteria-fermented products, which are promising for the prevention or healing of inflammatory bowel diseases.
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