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Table 1 Zone of inhibition of the different plant extracts against S. aureus, E. coli, K. pneumonie, P. aeruginosa, S. pyogenes, and S. typhi

From: Antibacterial, antioxidant, and sun protection potential of selected ethno medicinal plants used for skin infections in Uganda

Extracts

Diameter zone of inhibition ± SD (mm)

S. aureus

E. coli

K. pneumonie

P. aeruginosa

S. pyogenes

S. typhi

SP

Hex

NA

NA

NA

NA

  

EtOAc

NA

NA

NA

NA

  

MeOH

12.2 ± 0.2

NA

11.3 ± 0.3

12.0 ± 0.7

  

Aqueous

NA

NA

NA

15.8 ± 0.8

  

CIP

32.0

34.0

34.0

36.0

  

ET

Hex

NA

NA

NA

  

NA

DCM

NA

17.3 ± 0.6

NA

  

10.0 ± 0.0

EtOAc

16.0 ± 1.0

17.3 ± 0.6

11.7 ± 0.6

  

13.7 ± 0.6

MeOH

15.0 ± 1.0

10.3 ± 0.6

14.7 ± 0.6

  

10.0 ± 0.0

Aqueous

NA

10.0 ± 0.0

10.0 ± 0.0

  

15.0 ± 0.0

CIP

25.0

35.0

32.0

  

22.0

PC

Hex

17.0 ± 1.0

12.6 ± 0.9

16.7 ± 0.5

17.1 ± 0.8

 

13.6 ± 0.5

EtOAc

NA

13.0 ± 0.8

NA

20.7 ± 1.6

 

15.0 ± 0.0

MeOH

18.5 ± 0.6

13.3 ± 0.5

16.6 ± 0.4

16.9 ± 0.4

 

NA

Aqueous

15.0 ± 0.0

NA

 

20.0 ± 0.8

 

19.0 ± 0.0

CIP

25

32

 

27

 

28.0

PF

Hex

NA

NA

NA

NA

NA

NA

EtOAc

19.1 ± 0.1

15.5 ± 0.2

NA

14.1 ± 0.2

18.3 ± 0.1

NA

MeOH

14.1 ± 0.1

10.7 ± 0.2

NA

NA

15.6 ± 0.2

NA

Aqueous

NA

NA

12.0 ± 0.0

NA

NA

13.0 ± 0.0

CIP

41.7

40.3

 

40.5

41.7

 
  1. NA not active (< 6 mm), CIP ciprofloxacin, SP Spermacoce princeae, PF Psorospermum febrifugum, PC Plectranthus caespitosus, ET Erlangea tomentosa. Blanks – not selected