Jin, Junhua Zhang, Bing Guo, Huiyuan Cui, Jianyun Jiang, Lu Song, Shuhui Sun, Min Ren, Fazheng Effects of acid- adaptation on acid resistance of <i>Bifidobacterium longum</i> subsp. <i>longum</i> BBMN68. <p>Control cells were not treated; acid-adaptation cells were acid-adapted at pH 4.5 for 2 hours; acid resistance shows the survival ratios of the cells at pH 3.5 for 2 hours. * significant difference (<i>P</i><0.05).</p> acid-;adaptation 2012-12-07
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10.1371/journal.pone.0050777.g002