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Table 1 Minimum inhibitory concentration (MIC)/Minimum bactericidal or fungicidal concentration (MBC or MFC) of tests substances (μg/ml)

From: Antimicrobial and antioxidant activities of the extracts and compounds from the leaves of Psorospermum aurantiacum Engl. and Hypericum lanceolatum Lam.

  P. aurantiacum H. lanceolatum
  Parameters Extracta 1 2 3 4 5 Extractb 7 10 11 RD
Bacteria
K. pneumoniae MIC 256 - 16 128 8 4 64 125 4 16 1
  MBC 1024 - 32 128 16 - 1024 - 4 16 1
  MBC/MIC 4 - 2 1 2 - 16 - 1 1 1
S. flexneri MIC 1024 - 64 - 16 8 64 2 8 16 0.50
  MBC >1024 - 64 - 16 8 1024 2 8 16 0.50
  MBC/MIC nd - 1 - 1 1 16 1 1 1 1
P. aeruginosa MIC 1024 - 32 - 8 - 64 - 8 16 1
  MBC >1024 - 64 - 16 - 1024 - 8 16 1
  MBC/MIC nd - 2 - 2 - 16 - 1 1 1
S. typhi MIC - - - - - 2 32 2 2 4 0.50
  MBC nd nd nd nd nd 2 1024 2 2 4 0.50
  MBC/MIC nd nd nd nd nd 1 32 1 1 1 1
E. faecalis MIC - - - - nd 32 64 32 8 32 0.50
  MBC nd nd nd nd nd 32 1024 32 8 32 0.50
  MBC/MIC nd nd nd nd nd 1 16 1 1 1 1
Fungi/ Yeats
C. albicans MIC 1024 - - - 32 - 512 - 32 64 2
  MBC >1024 nd nd nd 32 - 1024 - 32 64 2
  MBC/MIC nd nd nd nd 1 - 2 - 1 1 1
C. lusitaniae MIC 256 16 8 8 4 - - - - - 1
  MBC 256 16 32 16 8 - nd - nd nd 1
  MBC/MIC 1 1 4 2 2   nd - nd nd 1
C. neoformans MIC 1024 16 - - 32 125 512 - 32 64 0.5
  MBC 1024 16 nd nd 64 125 1024 - 32 64 1
  MBC/MIC 1 1 nd nd 2 1 2 - 1 1 2
C. krusei MIC 1024 64 - - 32 - 256 - 64 64 2
  MBC 1024 64 nd nd 32 - 1024 - 64 64 2
  MBC/MIC 1 1 nd nd 1 - 4 - 1 1 1
Fungi/Dermatophytes
T. ajelloi MIC 1024 16 16 4 4 4 512 4 32 64 4
  MBC 1024 16 16 4 4 4 1024 4 32 64 4
  MBC/MIC 1 1 1 1 1 1 2 1 1 1 1
T. rubrum MIC 1024 32 128 16 8 32 256 64 8 32 4
  MBC 1024 32 128 16 8 32 1024 64 8 32 4
  MBC/MIC 1 1 1 1 1 1 4 1 1 1 1
  1. Extracta : EtOAc extract of the leaves of P. aurantiacum; Extractb : MeOH extract of the leaves of H. lanceolatum; nd: not determined; -: not active at the concentration up to 128 μg/ml for compounds and 1024 μg/ml for extracts; RD (Reference drug) ciprofloxacin for bacteria, nystatin for yeast and griseofulvin for dermatophytes.
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