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Table 7 Antimicrobial activities of aqueous extract of Vernonia amygdalina leaf

From: Evaluation of the bioactive compounds of Vernonia amygdalina Delile extracts and their antibacterial potentials on water-related bacteria

Organisms

25 mg/ml

50 mg/ml

100 mg/ml

Bacillus subtilis

1.333 ± 0.882a

9.667 ± 0.882b

17.67 ± 1.453c

Corynebacterium diphtheriae

15.667 ± 0.882a

24.333 ± 0.333b

31.667 ± 0.882c

Enterococcus faecalis

2.000 ± 1.155a

4.000 ± 2.646a

7.333 ± 1.333a

Escherichia coli

10.333 ± 0.882a

15.667 ± 1.202b

26.667 ± 0.882c

Pseudomonas aeruginosa

12.333 ± 0.882a

16.000 ± 1.155b

22.333 ± 0.882b

Staphylococcus aureus

1.333 ± 0.882a

9.667 ± 1.453b

21.667 ± 0.882c

Staphylococcus sp.

3.333 ± 0.882a

13.667 ± 0.882b

20.000 ± 0.577b

Streptococcus pyogenes

1.667 ± 0.882a

6.333 ± 0.882b

8.667 ± 0.882b

  1. Mean ± Standard Error Superscript a, b, c = significantly different at p < 0.05