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Table 1 The survival rate of LAB after exposure to simulated OGT stress

From: The regulation of simulated artificial oro-gastrointestinal transit stress on the adhesion of Lactobacillus plantarum S7

Species

Strain

Initial viable counts (log10 CFU/mL)

Viable counts after exposuring in simulated saliva (log10 FU/mL)

Viable counts after exposuring in simulated saliva and gastric juice (log10 CFU/mL)

Survival rate

after exposuring in simulated OGT1 stress/ (%)

Survival rate

after exposuring in simulated OGT2stress/ (%)

L. plantarum

S2

9.59 ± 0.02a

9.56 ± 0.00b

9.38 ± 0.02c

3.45 ± 0.37aJ

0.25 ± 0.00bI

S7

9.41 ± 0.02a

9.33 ± 0.08ab

9.23 ± 0.04b

32.69 ± 4.40aD

13.42 ± 2.46bB

69

9.97 ± 0.01a

9.90 ± 0.03b

9.37 ± 0.00c

20.53 ± 1.28aE

12.24 ± 0.53bB

67

9.06 ± 0.02a

9.09 ± 0.01a

8.94 ± 0.00b

172.72 ± 20.45aA

78.63 ± 5.61bA

W198

9.46 ± 0.03b

9.57 ± 0.03a

9.60 ± 0.01a

68.80 ± 5.26aB

78.89 ± 7.01aA

L. fermentum

148

9.10 ± 0.00a

9.03 ± 0.01b

8.99 ± 0.02b

8.44 ± 0.06aG

0.02 ± 0.00bN

W120

9.56 ± 0.06a

9.28 ± 0.00b

9.26 ± 0.00b

35.24 ± 0.58aD

0.45 ± 0.02bH

m18

9.26 ± 0.00a

9.18 ± 0.01b

9.15 ± 0.02b

5.19 ± 0.30bI

10.26 ± 0.09aC

W26

9.02 ± 0.02a

8.97 ± 0.02b

8.80 ± 0.05b

48.95 ± 1.90aC

8.65 ± 0.05bD

m62

9.35 ± 0.00a

9.34 ± 0.02ab

9.30 ± 0.03b

6.90 ± 0.06aH

1.25 ± 0.12bF

128

9.35 ± 0.00a

9.30 ± 0.00b

9.19 ± 0.14b

6.38 ± 1.45a HI

0.58 ± 0.06bG

m14

9.37 ± 0.11a

9.14 ± 0.02b

9.13 ± 0.01b

8.22 ± 0.35aG

1.26 ± 0.02bF

L. rhamnous

108

9.72 ± 0.22ab

9.88 ± 0.01a

9.71 ± 0.02b

7.36 ± 0.80aH

0.04 ± 0.00bM

m28

9.67 ± 0.03a

9.54 ± 0.02b

9.18 ± 0.20c

0.89 ± 0.06aL

0.18 ± 0.00bJ

m10

9.35 ± 0.05a

9.34 ± 0.07a

9.33 ± 0.03a

3.05 ± 0.30aJ

< 0.001b

m15

9.40 ± 0.03a

9.43 ± 0.04a

9.17 ± 0.07b

< 0.001

< 0.001

 L. paracasei

m85

8.82 ± 0.02ab

8.87 ± 0.04a

8.76 ± 0.04b

0.41 ± 0.07aM

0.16 ± 0.01bK

m82

8.97 ± 0.02a

8.87 ± 0.05b

8.79 ± 0.00c

10.02 ± 0.12aF

2.52 ± 0.24bE

W12

9.14 ± 0.01a

9.18 ± 0.06a

9.08 ± 0.06a

2.67 ± 0.20aK

2.11 ± 0.30bE

92

9.29 ± 0.01a

9.28 ± 0.02a

9.14 ± 0.02b

0.19 ± 0.01aN

0.08 ± 0.00bL

S. thermophilus

W191

8.30 ± 0.01b

8.38 ± 0.00a

8.36 ± 0.03a

< 0.001

< 0.001

W129

8.28 ± 0.00b

8.34 ± 0.00a

8.28 ± 0.07ab

< 0.001

< 0.001

W131

8.11 ± 0.02b

8.26 ± 0.00a

8.08 ± 0.03b

< 0.001

< 0.001

W173

8.48 ± 0.03a

8.50 ± 0.00a

8.33 ± 0.02b

< 0.001

< 0.001

W172

8.65 ± 0.02a

8.36 ± 0.00b

8.41 ± 0.03b

< 0.001

< 0.001

  1. OGT1, simulated oral fluid, gastric fluid and intestinal fluid (w/v, 0.15% oxgall bile salt); OGT2, simulated oral fluid, gastric fluid and intestinal fluid (w/v, 0.30% oxgall bile salt). Different lowercase letters in the same row denote significant differences in the viable counts or the survival rate of the same strain (P < 0.05). Different capital letters in the same column denote significant differences in the survival rate among strains (P < 0.05). The results are expressed as the mean ± SD (n = 3)