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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