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Table 1 The counts showing acid tolerance of the non- adapted and the adapted cells of the probiotics over time

From: Cocktails of probiotics pre-adapted to multiple stress factors are more robust under simulated gastrointestinal conditions than their parental counterparts and exhibit enhanced antagonistic capabilities against Escherichia coli and Staphylococcus aureus

Probiotic strains Acid- bile- temperature adapted pH
2 2.5 3
Time (mins)
60 120 180 60 120 180 60 120 180
Bacterial counts (Log cfu/ml)
B. bifidum LMG 11041 No 6.76 ± 1.1 6.63 ± 1.2 6.48 ± 1.1 6.71 ± 2.1 6.65 ± 1.2 6.54 ± 0.6 6.99 ± 3.2 6.93 ± 2.8 6.69 ± 1.5
Yes 6.95 ± 1.5 6.84 ± 1.0 6.79 ± 1.2 6.88 ± 2.3 6.78 ± 2.5 6.72 ± 1.7 6.98 ± 2.8 6.95 ± 2.3 6.88 ± 2.0
B. longum LMG 13197 No 6.76 ± 1.2 6.67 ± 1.5 6.53 ± 1.0 6.66 ± 1.2 6.64 ± 0.8 6.58 ± 1.6 6.86 ± 1.7 6.81 ± 2.0 6.74 ± 2.2
Yes 6.87 ± 2.5 6.82 ± 1.2 6.75 ± 1.5 6.89 ± 2.5 6.79 ± 1.5 6.64 ± 2.0 6.93 ± 3.5 6.87 ± 2.7 6.79 ± 2.5
B. longum Bb46 No 6.62 ± 1.5 6.57 ± 1.1 6.43 ± 1.2 6.69 ± 0.5 6.62 ± 1.1 6.54 ± 1.8 6.65 ± 2.0 6.6 ± 2.3 6.54 ± 1.7
Yes 6.82 ± 2.0 6.77 ± 2.3 6.64 ± 1.8 6.79 ± 1.0 6.65 ± 1.2 6.58 ± 1.5 6.63 ± 2.5 6.6 ± 2.1 6.57 ± 2.1
L. acidophilus La14 150B No 7.88 ± 1.2 7.76 ± 0.8 7.69 ± 1.2 7.79 ± 2.2 7.67 ± 2.5 7.56 ± 2.8 7.97 ± 2.2 7.79 ± 2.0 7.68 ± 2.1
Yes 7.97 ± 1.5 7.91 ± 0.3 7.81 ± 1.2 7.94 ± 3.3 7.87 ± 2.8 7.72 ± 2.0 7.98 ± 2.0 7.83 ± 1.8 7.79 ± 2.3
L. fermentum No 7.72 ± 0.7 7.57 ± 1.3 7.52 ± 0.5 7.88 ± 1.5 7.68 ± 1.8 7.51 ± 2.0 7.81 ± 1.2 7.59 ± 1.5 7.54 ± 1.8
Yes 7.87 ± 1.5 7.89 ± 0.8 7.79 ± 1.2 7.85 ± 2.5 7.83 ± 2.1 7.76 ± 1.8 7.89 ± 2.6 7.8 ± 1.8 7.77 ± 1.5
L. plantarum No 7.93 ± 1.3 7.72 ± 1.5 7.61 ± 1.2 7.97 ± 1.9 7.79 ± 0.9 7.69 ± 0.2 7.93 ± 1.8 7.86 ± 1.2 7.68 ± 1.5
Yes 7.94 ± 2.3 7.85 ± 1.7 7.78 ± 1.3 7.99 ± 2.0 7.89 ± 1.6 7.79 ± 1.2 7.98 ± 2.5 7.93 ± 2.2 7.86 ± 2.3
  1. Each value in the table represents the mean of triplicate plate count readings from three separate experiments. The table shows the trend that was followed by the adapted and the non- adapted cells when they were exposed to the different pH values.