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Table 9 Minimum Inhibitory Concentration

From: Pharmacognostic standardisation of the leaves of Costus afer Ker Gawl. (Zingiberaceae) and Palisota hirsuta (Thunb.) K. Schum. (Commelinaceae)

Samples Concentrations

 

Staphylococcus aureus

Escherichia coli

Bacillus subtilis

Pseudomonas aeruginosa

Salmonella typhi

Klebsiella pneumonae

Candida albicans

Aspergillus niger

Penicillium notatum

Rhizopus stolonifer

Costus afer

100 mg/mL

 − 

 − 

 − 

 − 

 − 

 − 

 − 

 − 

 − 

 − 

50 mg/mL

 − 

 − 

 − 

 − 

 − 

 − 

 − 

 − 

 − 

 − 

25 mg/mL

 − 

 − 

 − 

 − 

 − 

 − 

 ± 

 ± 

 + 

 + 

12.5 mg/mL

 ± 

 − 

 ± 

 ± 

 ± 

 + 

 + 

 + 

 + 

 + 

Palisota hirsuta

100 mg/mL

 − 

 − 

 − 

 − 

 − 

 − 

 − 

 − 

 − 

 − 

50 mg/mL

 − 

 − 

 − 

 − 

 − 

 − 

 − 

 − 

 − 

 − 

25 mg/mL

 − 

 − 

 − 

 − 

 + 

 + 

 + 

 + 

 + 

 + 

12.5 mg/mL

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

  1.  + No inhibition of the growth of organisms
  2.  − Inhibition of the growth of organisms
  3.  ± No pronounced growth of organisms