Table 2.

IC₅₀ values for the extract against gram-negative bacteria.

Extracts	Escherichia coli	Pseudomonas aeruginosa	Aeromas hydrophila	Shigella flexneri	Shigella sonnei	Acinobacter baumanii	Enterobacter aerogenes	Brevundimonas diminuta	Salmonella enteritidis
IC50 (µg/mL)	≥2000 ± 0.0	≥2000 ± 0.0	866.5 ± 0.009	1047 ± 0.004	≥2000 ± 0.0	1238 ± 0.046	≥2000 ± 0.0	127.2 ± 0.017	≥2000 ± 0.0
Positive control (Ciprofloxacin)	0.02 ± 0.001	0.02 ± 0.002	0.01 ± 0.001	0.02 ± 0.002	0.02 ± 0.001	0.17 ± 0.001	0.04 ± 0.003	2.26 ± 0.03	0.01 ± 0.0

The results are presented as Mean of three independent determinations ± Standard Deviation.