Table 2 Zone of inhibition (in mm) of the different concentrations of crude and solvent fractions of the leaves of Rhamnus prinoides against gram negative bacteria

Crude

19.5 mg/well

12.00 ± 0.58^a3d2

11.67 ± 0.33 ^a3d2

11.67 ± .88^a3d1

11.33 ± 0.67^a3d2

39 mg/well

14.00 ± 0.00^a3d1

13.67 ± 0.33 ^a3d1

12.67 ± 0.33^a3

12.67 ± 0.33^a3

78 mg/well

17.00 ± 0.58^a3

16.00 ± 0.58 ^a3

15.00 ± 0.00^a3

14.50 ± 0.29 ^a3

Cef 0.03 mg/disc*

NT

NT

28.33 ± 0.88

27.00 ± 0.58

Cip 0.005 mg/disc*

26.33 ± 0.67

25.00 ± 0.58

NT

NT

Methanol

19.5 mg/well

11.00 ± 0.00^a3d2

10.67 ± 0.67^a3d2

10.33 ± 0.33^a3d3

9.00 ± 0.58^a3c2d3

39 mg/well

13.00 ± 0.58^a3

12.67 ± 0.33^a3

12.00 ± 0.58^a3d1

11.67 ± 0.33^a3d2

78 mg/well

15.00 ± 0.58^a3

14.67 ± 0.33^a3

14.50 ± 0.29^a3

14.33 ± 0.33^a3

Cef 0.03 mg/disc*

NT

NT

27.67 ± 0.33

26.67 ± 0.33

Cip 0.005 mg/disc*

27.00 ± 0.58

26.33 ± 0.67

NT

NT

Chloroform

19.5 mg/well

10.00 ± 0.58^a3d2

10.33 ± 0.33^a3

---

---

39 mg/well

11.33 ± 0.33^a3f1

11.67 ± 0.67^a3

----

---

78 mg/well

13.33 ± 0.33 ^a3g2

12.33 ± 0.33^a3g2

---

---

Cip 0.005 mg/disc*

25.00 ± 0.58

24.67 ± 0.33

NT

NT