Effects of acid- adaptation on acid resistance of Bifidobacterium longum subsp. longum BBMN68.
2012-12-07T02:40:42Z (GMT) by
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 (P<0.05).