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Table 8 Anti-bacterial activity of intracellular cell free extracts of isolated lactic acid bacteria

From: Lactic acid bacteria isolated from fermented flour of finger millet, its probiotic attributes and bioactive properties

Test pathogens

Mean diameter of the zones of inhibition (in mm)

R17

RV02

RV19

RV28

O24

E. coli ATCC 2592

15.33 ± 0.33b

16.67 ± 1.45b

15.33 ± 0.33b

17.33 ± 0.33b

15.33 ± 0.33b

K. pneumonia ATCC 35594

15.33 ± 0.33c

14.66 ± 0.33c

15.00 ± 0.00c

18.33 ± 0.33b

18.33 ± 0.33b

S. aureus ATCC 6571

10.33 ± 0.33d

13.33 ± 0.33c

12.66 ± 0.33c

13.33 ± 0.33c

13.00 ± 0.57c

S. sanguinis ATCC 10556

0.00 ± 0.00b

0.00 ± 0.00b

0.00 ± 0.00b

0.00 ± 0.00b

0.00 ± 0.00b

S. salvarius ATCC 13419

14.66 ± 0.33d

16.00 ± 0.00c

16.00 ± 0.00c

10.66 ± 0.33e

14.00 ± 0.00d

S. flexenari ATCC 12022

14.33 ± 0.33b

15.66 ± 0.33b

16.00 ± 0.00b

12.33 ± 0.66c

15.66 ± 0.33b

E. faecilis ATCC 49532

8.33 ± 0.33d

0.00 ± 0.00e

0.00 ± 0.00e

0.00 ± 0.00c

12.66 ± 0.33e

A. baumani ATCC 17978

0.00 ± 0.00g

15.33 ± 0.33c

11.33 ± 0.33f

13.00 ± 0.00e

14.33 ± 0.33d

S. mutans ATCC 25175

0.00 ± 0.00c

0.00 ± 0.00c

0.00 ± 0.00c

0.00 ± 0.00c

0.00 ± 0.00c

S. pyogenes ATCC 700294

0.00 ± 0.00e

12.00 ± 0.00c

12.33 ± 0.33c

15.00 ± 0.57b

13.66 ± 0.33b,c

E. coli ATCC35218a

15.33 ± 0.33c

16.00 ± 0.00c

18.33 ± 0.33b

16.66 ± 0.33b,c

15.33 ± 0.33c

S. aureusa NCTC13143

17.33 ± 0.33c

15.00 ± 0.00b

17.66 ± 0.66c

18.66 ± 0.66b

15.66 ± 0.33b

K. pneumonia ATCC700603a

0.00 ± 0.00c

0.00 ± 0.00c

0.00 ± 0.00c

0.00 ± 0.00c

0.00 ± 0.00c

E. faecilis ATCC700802a

0.00 ± 0.00c

0.00 ± 0.00c

0.00 ± 0.00c

0.00 ± 0.00c

0.00 ± 0.00c

S. enterica ATCC700408a

12.00 ± 0.00d

15.33 ± 0.33b

9.66 ± 0.88d

16.00 ± 0.00b

15.66 ± 0.66b

  1. Data is expressed as mean ± SEM, n = 9. Within a row, mean values with lowercase letters are significantly different (P < 0.05). The letters R, RV, and O refers to lactic acid bacteria isolated from Ravi, Ravana, and Oshadha varieties of finger millet
  2. aMultidrug-resistant strains