Emmental Cheese Environment Enhances Propionibacterium freudenreichii Stress Tolerance
Fig 5
P. freudenreichii subsp. shermani CIRM BIA 1 tolerance to digestive stresses.
Propionibacteria were harvested at different stages of growth in CdM black square or in EJ white square, prior to acid (A, pH 2) or bile salts (B, 1 g L-1) challenges. Surviving bacteria were then counted by CFU enumeration. Means with different lower case superscript letters (a-b) differ significantly (P < 0.05) in italic groups for CdM and in normal case groups for EJ.