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Table 6 Antimicrobial activities of ethanol 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

4.667 ± 1.202a

11.000 ± 1.000

22.667 ± 0.882c

Corynebacterium diphtheriae

6.333 ± 0.333a

22.000 ± 0.577b

30.333 ± 0.882c

Enterococcus faecali

2.000 ± 1.155a

14.333 ± 0.333b

29.667 ± 0.333c

Escherichia coli

8.333 ± 0.667a

17.667 ± 0.882b

21.000 ± 0.577c

Pseudomonas aeruginosa

15.333 ± 1.764a

22.667 ± 0.882b

23.333 ± 1.453

Staphylococcus aureus

4.000 ± 1.000a

9.333 ± 1.202b

14.333 ± 1.202c

Staphylococcus sp.

8.667 ± 2.028a

13.333 ± 1.764a

26.000 ± 1.000b

Streptococcus pyogenes

7.000 ± 1.155a

12.000 ± 1.155a

24.667 ± 3.383

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