Skip to main content

Table 3 Antimicrobial activity of T. brownii root extracts

From: Antimicrobial activity and brine shrimp toxicity of extracts of Terminalia brownii roots and stem

Extracts/drugs Organisms tested
   S. aureus P. mirabilis S. typhi E. coli P. aeruginosa B. anthracis B. cereus K. pneumoniae C. albicans C. neoformns
PE IZ 3.0 ± 0.6 11.7 ± 1.5 - 2.5 ± 1.3 4.5 ± 0.7 5.5 ± 1.7 - 2.3 ± 0.3 2.5 ± 0.5 -
  AI 0.21 0.83 - 0.17 0.32 0.30 - 0.19 0.18 -
DM IZ 7.0 ± 2.0 12.5 ± 1.7 - 5.0 ± 0.5 4.5 ± 1.1 7.5 ± 0.7 - 1.0 ± 0.6 2.0 ± 0.7 -
  AI 0.50 0.89 - 0.33 0.32 0.43 - 0.08 0.14 -
DM:M (1:1) IZ 11.5 ± 1.1 13.0 ± 1.0 - - - - 5.5 ± 0.3 - 12.0 ± 1.0 5.5 ± 0.3
  AI 0.82 0.93 - - - - 0.39 - 0.86 0.37
M IZ 12.7 ± 1.1 13.5 ± 1.7 - - 9.0 ± 2.0 12.0 ± 2.0 4.5 ± 0.7 - 8.0 ± 1.0 7.0 ± 1.0
  AI 0.91 0.96 - - 0.64 0.67 0.32 - 0.57 0.47
Aqua IZ 14.0 ± 1.1 - - - 12.0 ± 1.1 13.0 ± 1.0 6.5 ± 0.3 6.0 ± 1.0 6.0 ± 2.0 8.5 ± 1.5
  AI 1.00 - - - 0.86 0.72 0.46 0.50 0.43 0.54
Gent IZ 14.0 ± 1.5 14.0 ± 1.0 14.0 ± 1.1 15.0 ± 1.5 14.0 ± 1.0 18.0 ± 1.0 14.0 ± 1.7 12.0 ± 1.0 - -
  AI 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 - -
Clotr IZ - - - - - - - - 14.0 ± 2.0 15.0 ± 1.0
  AI - - - - - - - - 1.00 1.00
  1. The results are presented as inhibition zone diameters in mm. Each value represents mean ± SD (n = 3). Key: PE = petroleum ether extract; DM = dicloromethane extract; 1:1 D:M = 1:1 dicloromethane:methanol extract; M = methanol extract; Aqua = aqueous extract; Gent = gentamicin; Clotr = Clotrimazole.