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Table 2 The MIC (mg/ml) values of Centella asiatica, Curtisia dentate and Warbugia salutaris extracts against bacteria

From: In vitro antibacterial and cytotoxic activity of leaf extracts of Centella asiatica (L.) Urb, Warburgia salutaris (Bertol. F.) Chiov and Curtisia dentata (Burm. F.) C.A.Sm - medicinal plants used in South Africa

 

Centella

Asiatica

Curtisia

Dentate

Warburgia

salutaris

Controls

Test organisms

Methanol

Ethyl

Acetate

Acetone

water

Methanol

Ethyl

Acetate

Acetone

water

Methanol

Ethyl

Acetate

Acetone

water

Cipro

1% DMSO

E. avium

2.5

5

2.5

>10

0.63

5

0.63

5

0.31

1.25

1.25

10

0.63

ND

S. aureus

2.5

1.25

1.25

5

0.31

2.5

0.63

5

1.25

1.25

0.16

5

0.16

ND

S. agalactiae

5

5

5

>10

0.63

5

1.25

>10

5

>10

1.25

5

2.5

ND

B. cereus

2.5

2.5

1.25

5

0.63

5

1.25

5

1.25

5

1.25

10

0.63

ND

E. hirae

2.5

5

1.25

>10

1.25

5

5

5

1.25

2.5

2.5

5

5.0

ND

E. faecalis

5

10

5

10

>10

>10

5

>10

>10

>10

5

>10

0.63

ND

E. gallinarium

1.25

5

2.5

5

1.25

5

5

>10

2.5

2.5

5

5

0.31

ND

E. Coli

1.25

5

0.63

>10

0.63

2.5

1.25

10

0.31

2.5

0.31

5

0.31

ND

P. aeruginosa

5

10

5

10

1.25

>10

0.63

>10

2.5

>10

2.5

10

1.25

ND

P. mirabilis

2.5

>10

5

>10

0.63

5

1.25

>10

2.5

5

2.5

>10

0.31

ND

P. vulgaris

5

5

2.5

10

5

5

2.5

10

>10

5

5

10

1.25

ND

K. pneumonia

>10

>10

5

>10

>10

>10

5

>10

2.5

5

5

>10

5.0

ND

Acinetobacter

Calcaoceuticals

Anitratus

5

>10

>10

>10

5

>10

>10

>10

5

>10

2.5

>10

5.0

ND

S. typhi

>10

>10

>10

>10

5

>10

5

>10

5

>10

>10

>10

2.5

ND

  1. MIC values given as mg/ml, results are mean of three replicates, ND = not determined, DMSO = Dimethyl sulfoxide; Cipro = Ciprofloxacin. (P ≤ 0.05)