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Table 4 Antimicrobial activities of LAB extracts

From: Antibiotic resistant microencapsulated probiotics synergistically preserved orange juice

Pathogenic organisms

Lactic acid bacteria extract combination (100 μg)

Standard

100 μg

50 μg + 50 μg

33 μg + 33 μl + 33 μg

25 μg in each

Ext 1

Ext 2

Ext 3

Ext 4

Ext (1 + 2)

Ext (1 + 3)

Ext (1 + 4)

Ext (1 + 2 + 3)

Ext (1 + 3 + 4)

Ext (2 + 3 + 4)

Ext (1 + 2 + 3 + 4)

Strep (30 μg)/Nys (30 μg)

Gram positive bacteria

Zone of inhibition (mm)

 B. cereus

19

15

21

16

11

23

22

17

25

21

27

22

 B. subtilis

18

17

19

13

12

24

24

21

24

22

29

29

 Staphyl. aureus

22

15

20

18

12

25

23

18

23

20

32

22

Gram negative bacteria

Zone of inhibition (mm)

 E. coli

19

17

20

19

12

24

20

14

25

25

26

24

 Shi. dysenteriae

21

15

21

18

13

23

22

16

24

21

27

22

 Shi. sonnei

20

12

20

19

13

24

19

17

25

24

29

25

Pathogenic fungi

Zone of inhibition (mm)

 S. cerevisiae

15

11

17

14

12

21

21

15

21

15

25

21

 A. niger

15

12

16

12

12

22

22

14

22

16

24

20

 C. albicans

17

10

13

10

11

23

23

18

24

14

23

23

  1. Strep streptomycin and Nys nystatin