| 
      *Means with a common letter are not significantly different (Fisher´s test, P<0.05).
        | Strain | SFL    mean | n |  |  |  |  
        | L gasseriCRL 1460 | 0.4 ±   0.03 | 4 | A* |  |  |  
        | L gasseriCRL 1412 | 0.71 ±   0.03 | 4 |  | B |  |  
        | L gasseriCRL 1421 | 0.71 ±   0.03 | 4 |  | B |  |  
        | L. delbrueckii subsp. delbrueckiiCRL    1461 | 0.84 ±   0.03 | 4 |  |  | C |  |