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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.