Table 4: Antibacterial activity of Marhaba honey against bacterial isolates. Data are shown as mean zone of inhibition (mm2) ± SD.

Organisms Honey concentrations +ve Control
Streptomycin
100% 75% 50% 25%
Bacillus alvei 81±1.11 - - - 625±0.53
Bacillus polymyxa 225±0.04 121±2.22 - - 441±1.33
Bacillus subtilis 121±1.01 - - - 529±1.41
Staphylococcus aureus 361±1.73 169±2.47 - - 841±0.89
Pseudomonas aeruginosa - - - - 169±0.48
Klebsiella pneumonia - - - - 361±0.07
Enterobecter - - - - 729±1.11
Escherichia coli - - - - 576±0.71

“+ve” means positive control, “–” means the absence of inhibition