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Table 4 Antibacterial activity of E. elatior flower extracts collected from different locations of Malaysia

From: Secondary metabolites constituents and antioxidant, anticancer and antibacterial activities of Etlingera elatior (Jack) R.M.Sm grown in different locations of Malaysia

Bacterial strains Inhibition zone (mm)   
  Kelantan Johor Pahang Gentamicin Ciprofloxacin
Staphylococcus aureus 8.4 ± 0.264b 4.0 ± 0.142e 9.2 ± 0.316a 6.5 ± 0.277d 7.3 ± 0.276c
Bacillus subtilis 6.5 ± 0.216a 4.2 ± 0.207e 6.2 ± 0.168b 5.6 ± 0.264c 4.8 ± 0.229d
Listeria monocytogenes 2.5 ± 0.183b NO 2.0 ± 0.273c 4.0 ± 0.177a 4.2 ± 0.119a
Escherichia coli 4.6 ± 0.166b NO 2.6 ± 0.219c 5.4 ± 0.318a 5.5 ± 0.337a
Salmonella typhimurium 6.2 ± 0.250c 2.5 ± 0.266e 5.4 ± 0.348d 7.2 ± 0.372a 6.8 ± 0.352b
Pseudomonas aeruginosa 8.0 ± 0.233a NO 6.1 ± 0.318c 6.5 ± 0.374b 6.7 ± 0.357b
  1. All analyses are the mean of triplicate measurements ± standard deviation. Means not sharing a common letter in each row were significantly different at P ≤ 0.05. NO: not observed