## Table 5 |
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Resistance to biological barriers for Bifidobacterium mongoliense strains FR 49/F/2 and FR 41/2 |
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Strains |
Incubation time |
Resistance to gastric juice^{a} |
Resistance to pancreatic juice^{b} |
Resistance to bile salts^{c} |
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pH 2 |
pH 3 |
pH 8 |
1% |
0.5% |
0.3% |
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FR49/f/2 | T1 h | > 3 log | 0.02 ± 0.6 | 0.13 ± 0.35 | ND | ND | ND |

T2 h | > 3 log | 0.05 ± 0.6 | 0.44 ± 0.05 | ND | ND | ND | |

T3 h | > 3 log | 0.05 ± 0.6 | 0.46 ± 0.03 | ND | ND | ND | |

T4 h | > 3 log | 0.16 ± 0.6 | 0.46 ± 0.06 | ND | ND | ND | |

T5 h | > 3 log | 0.04 ± 0.7 | 0.50 ± 0.07 | ND | ND | ND | |

T48 h | NA | NA | NA | 3.39 ± 0.34 | 3.07 ± 0.25 | 1.76 ± 0.13 | |

FR41/2 | T1 h | > 3 log | −0.04 ± 0.7 | 0.06 ± 0.09 | ND | ND | ND |

T2 h | > 3 log | 0.11 ± 0.8 | 0.06 ± 0.06 | ND | ND | ND | |

T3 h | > 3 log | 0.29 ± 0.7 | 0.01 ± 0.15 | ND | ND | ND | |

T4 h | > 3 log | 0.51 ± 0.6 | 0.02 ± 0.10 | ND | ND | ND | |

T5 h | > 3 log | 0.61 ± 0.7 | 0.41 ± 0.24 | ND | ND | ND | |

T48 h | NA | NA | 4.11 ± 0.00 | 3.93 ± 0.00 | 4.14 ± 0.00 |

Decrease in viable cell counts (log CFU ml^{-1}) after exposure: ^{a}to low pH (2 and 3) solutions during 1-5 h at 37°C, ^{b}to pancreatic juice solution during 1-5 h at 37°C, ^{c}to bile salts (1, 0.5 and 0.3% ) during 48 h at 37°C.

NA: not applicable.

ND: not determined.

Delcenserie * et al.*

Delcenserie * et al.* *BMC Microbiology* 2013 **13**:239 doi:10.1186/1471-2180-13-239