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Table 5 Minimal Inhibitory Concentration (MIC) of Z.zerumbet extracts (3 month-old leaf and 9 month-old rhizome and stem) against bacterial strains

From: Variation in secondary metabolite production as well as antioxidant and antibacterial activities of Zingiber zerumbet (L.) at different stages of growth

Bacterial Strains

Leaf

Stem

Rhizome

Staphylococcus aureus

30.0

>100

40.0

Bacillus subtilis

80.0

>100

60.0

Listeria monocytogenes

>100

NO

>100

Escherichia coli

>100

NO

>100

Salmonella typhimurium

>100

NO

50.0

Pseudomonas aeruginosa

80.0

NO

40.0

  1. All analyses are the mean of triplicate measurements ± standard deviation; unit is μg/mL; NO: not observed