used for the immuno-modulatory assays were grown under
limited aeration at 37 C in MRS media (Difco). Bifidobacterium
longum was grown anaerobically in MRS supplemented with 0.05%
L-cysteineehydrochloride (Sigma). Lactococcus lactis was grown at
30 C in an M17 medium supplemented with 0.5% glucose.