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Table 1 Antimicrobial activity of phomalactone

From: Antimicrobial metabolite profiling of Nigrospora sphaerica from Adiantum philippense L.

Sl. no.

Test organism

Disc diffusion assay

MIC (in μg)

Gentamicin

(10 μg disc-1)

30 μg disc-1

60 μg disc-1

150 μg disc-1

300 μg disc-1

450 μg disc-1

600 μg disc-1

Phomalactone

Gentamicin

1.

Bacillus cereus

19.33 ± 0.58f

21.67 ± 0.58e

23.33 ± 0.58d

25.33 ± 0.58c

26.67 ± 0.58bc

28.00 ± 0.00ab

29.33 ± 0.58a

6.25

0.78

2.

Bacillus subtilis

20.33 ± 0.58de

17.67 ± 0.58f

19.33 ± 0.58ef

21.67 ± 0.58cd

23.33 ± 0.58c

26.33 ± 0.58b

31.00 ± 1.00a

6.25

0.19

3.

Escherichia coli

20.33 ± 0.58f

24.33 ± 0.58e

25.00 ± 0.00de

26.33 ± 0.58cd

27.33 ± 0.58bc

29.00 ± 1.00b

31.67 ± 0.58a

3.12

0.39

4.

Klebsiella pneumonia

21.33 ± 0.58d

18.67 ± 0.58e

21.33 ± 0.58d

22.67 ± 0.58d

25.67 ± 0.58d

27.33 ± 0.58b

29.33 ± 0.58a

6.25

1.56

5.

Salmonella typhi

21.00 ± 1.00f

22.67 ± 0.58ef

23.67 ± 0.58de

25.00 ± 0.00cd

26.33 ± 0.58bc

27.67 ± 0.58b

30.00 ± 1.00a

6.25

0.39

6.

Shigella flexneri

19.67 ± 0.58f

20.33 ± 0.58ef

22.00 ± 1.00de

23.67 ± 0.58cd

25.67 ± 0.58c

28.00 ± 1.00b

31.00 ± 1.00a

6.25

1.56

7.

Staphylococcus aureus

26.33 ± 0.58bc

19.00 ± 1.00e

21.67 ± 0.58d

24.67 ± 0.58c

26.00 ± 0.00bc

27.33 ± 0.58b

31.00 ± 1.00a

12.5

0.19

8.

Staphylococcus epidermidis

27.67 ± 0.58a

12.67 ± 0.58d

17.67 ± 0.58c

22.67 ± 0.58b

24.67 ± 0.58b

27.00 ± 1.00a

29.00 ± 1.00a

12.5

0.19

9.

Vibrio parahaemolyticus

17.33 ± 0.58de

16.67 ± 0.58e

18.67 ± 0.58d

22.33 ± 0.58c

24.33 ± 0.58b

25.67 ± 0.58ab

26.67 ± 0.58a

6.25

0.78

10.

Xanthomonas campestris

30.00 ± 1.00b

17.67 ± 0.58e

19.33 ± 0.58e

22.00 ± 1.00d

24.67 ± 0.58c

31.00 ± 1.00b

33.67 ± 0.58a

3.12

0.39

11

Candida albicans

25.67 ± 0.58a

NA

NA

16.33 ± 0.58d

17.33 ± 1.15cd

18.67 ± 0.58bc

20.33 ± 0.58b

12.5

0.19

  1. Values followed by the same superscript letter(s) are significantly different at (p < 0.05) by Tukey’s post hoc test
  2. NA no activity