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Table 5 The MBC (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

5

>10

10

>10

2.5

>10

10

>10

5

>10

10

>10

0.63

ND

S. aureus

10

5

5

>10

5

10

5

>10

10

10

2.5

>10

0.16

ND

S. agalactiae

>10

>10

>10

>10

>10

>10

10

>10

10

>10

5

>10

2.5

ND

B. cereus

>10

10

2.5

>10

10

>10

>10

>10

5

>10

5

>10

0.63

ND

E. hirae

>10

>10

>10

>10

>10

>10

>10

>10

>10

10

10

>10

5.0

ND

E. faecalis

>10

>10

>10

>10

>10

>10

>10

>10

>10

>10

10

>10

0.63

ND

E. gallinarium

10

>10

>10

>10

>10

>10

10

>10

10

>10

>10

>10

0.31

ND

E. Coli

5

>10

5

>10

10

5

5

>10

2.5

5

2.5

>10

0.31

ND

P. aeruginosa

>10

>10

>10

>10

>10

>10

10

>10

10

>10

10

>10

1.25

ND

P. mirabilis

>10

>10

>10

>10

5

>10

>10

>10

>10

>10

>10

>10

0.31

ND

P. vulgaris

>10

>10

10

>10

>10

>10

>10

>10

>10

>10

>10

>10

1.25

ND

K. pneumonia

>10

>10

>10

>10

>10

>10

>10

>10

10

10

>10

>10

5.0

ND

Acinetobacter

Calcaoceuticals

Anitratus

>10

>10

>10

>10

>10

>10

>10

>10

>10

>10

10

>10

5.0

ND

S. typhi

>10

>10

>10

>10

>10

>10

>10

>10

>10

>10

>10

>10

2.5

ND

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