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Table 5 The MBC (in mg/ml) of the crude extract and the solvent fractions of Rhamnus prinoides against gram positive and gram negative bacteria

From: Evaluation of the in vitro antibacterial activity of the solvent fractions of the leaves of Rhamnus prinoides L’Herit (Rhamnaceae) against pathogenic bacteria

Bacteria

Crude extract

Solvent fractions

Methanol fraction

Chloroform fraction

MBC

MBC

MBC

S. aureus

Stand.

2.03 ± 0.00

16.25 ± 0.00

16.25 ± 0.00

Clinc.

4.06 ± 0.00

16.25 ± 0.00

16.25 ± 0.00

S. pyogen

Stand.

4.06 ± 0.00

13.54 ± 2.71

16.25 ± 0.00

Clinc.

4.06 ± 0.00

16.25 ± 0.00

16.25 ± 0.00

S. pneumoniae

Stand.

8.13 ± 0.00

32.50 ± 0.00

32.50 ± 0.00

Clinc.

16.25 ± 0.00

32.50 ± 0.00

32.50 ± 0.00

S. flexneri

Stand.

8.13 ± 0.00

32.50 ± 0.00

16.25 ± 0.00

Clinc.

8.13 ± 0.00

32.50 ± 0.00

32.50 ± 0.00

E. coli

Stand.

8.13 ± 0.00

32.50 ± 0.00

---

Clinc.

8.13 ± 0.00

65.00 ± 0.00

---

P. aeruginosa

Stand.

8.13 ± 0.00

32.50 ± 0.00

---

Clinic.

8.13 ± 0.00

32.50 ± 0.00

---

S. typhi

Stand

4.06 ± 0.00

16.25 ± 0.00

16.25 ± 0.00

  1. MBC = Minimum Bactericidal Concentration, the values are the average of triplicate tests. Stand. = standard (ATCC) strains whereas Clinic. = clinically isolated strains