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Table 1 Average zone of inhibition (±1.00 mm) produced by different H. africana extracts used for the management of dysentery at different concentrations and ciprofloxacin against the selected bacterial strains

From: The antibacterial, phytochemicals and antioxidants evaluation of the root extracts of Hydnora africanaThunb. used as antidysenteric in Eastern Cape Province, South Africa

Bacteria

Zones of inhibition

 

Aqueous

Ethanol

Acetone

Positive control (Ciprofloxacin)

Salmonella typhimurium

NA

NA

10 ± 1.1

25 ± 1.1

Enterococcus faecalis

NA

15 ± 1.0

16 ± 1.2

24 ± 1.2

Escherichia coli

NA

20 ± 0.1a

15 ± 2.1

25 ± 0.2

Pseudomonas aeruginosa

NA

20 ± 1.1a

15 ± 1.3

24 ± 1.1

Bacillus cereus

NA

15 ± 1.2

15 ± 1.2

24 ± 1.2

Shigella sonnei

NA

15 ± 0.2

20 ± 2.2a

24 ± 2.2

Streptococcus pyogens

NA

15 ± 0.2

13 ± 1.2

23 ± 2.1

Bacillus subtilis

NA

15 ± 1.1

15 ± 0.5

22 ± 0.2

Shigella flexneri

NA

15 ± 0.3

16 ± 0.5

24 ± 1.1

Vibrio cholerae

NA

16 ± 2.0

16 ± 0.6

20 ± 1.3

Kleb pneumoniae

NA

15 ± 0.6

14 ± 1.3

24 ± 2.2

Staphylococcus aureus

NA

12 ± 0.8

15 ± 0.4

24 ± 0.2

  1. aNot statistically different from the positive control; NA, not active