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Table 2 Antibacterial activity of A. jacquemontii extracts against Gram-positive and Gram negative bacteria

From: Phytochemical, in-vitro biological and chemo-preventive profiling of Arisaema jacquemontii Blume tuber extracts

Microorganism

Diameter of growth inhibition zone (mm)

n-Hex

CHCl3

Ace

EtOAc

EtOH

MeOH

EtOH+ CHCl3

MeOH+ CHCl3

Ace + EtOAc

EtOH+ EtOAc

MeOH+ EtOAc

Cef/Rox

E. aerogens

--

6.5 ± 0.40d*

--

--

--

--

6.5 ± 0.43d*

--

--

--

--

24 /22

S. typhimurium

7.0 ± 0.92d*

--

--

9.0 ± 1.19 a*

9.5 ± 0.99 d*

--

--

8.0 ± 0.71 c*

9.0 ± 1.28 c*

7.0 ± 1.31d*

--

18/20

M. luteus

--

--

--

113.8 ± 1.08a*

--

213 ± 0.15a*

--

9.5 ± 1.55 c*

--

--

6.5 ± 0.13d*

15/20

B. bronchiseptica

9.0 ± 0.67d*

8.0 ± 0.51e*

710.0 ± 0.46b*

9.5 ± 0.38b*

910 ± 0.73b*

311.7 ± 0.51a*

810. ± 0.61 c*

--

411 ± 1.42 b*

610 ± 1.51c*

511 ± 0.46 b*

22/20

S. aureus

--

8.0 ± 0.57d*

--

6.9 ± 1.56c*

--

--

7.0 ± 0.58f*

--

9.7 ± 0.57 b*

--

7.0 ± 0.59f*

18/15

  1. Data Values are presented as mean + SD (n = 3)
  2. --: no zone of inhibition, LSD all pair wise comparison Alpha 0.05 (a*, b*, etc.) in which the means are not significantly different from one a another
  3. Positive control = Cef (Cefixime) and Rox (Roxithromycin), Negative control = DMSO (no zone of inhibition)
  4. MIC: 1 = 50 μg/ml, 2 = 50 μg/ml, 3 = 75 μg/ml,4 = 75 μg/ml,5 = 75 μg/ml,6 = 75 μg/ml,7 = 75 μg/ml,8 = 75 μg/ml,9 = 75 μg/ml