Environmental Sciences Europe

Table 7 Antibacterial activity of Cyperus papyrus

From: Comparing the performance of Cyperus papyrus and Typha domingensis for the removal of heavy metals, roxithromycin, levofloxacin and pathogenic bacteria from wastewater

Concentrations (mg/mL)	Zones of inhibition (mm)
	Escherichia coli			Pseudomonas aeruginosa			Staphylococcus aureus
	Min	Max	Mean	Min	Max	Mean	Min	Max	Mean
150	0.0	0.0	0.0	0.0	0.0	0.0	11.0	13.0	12.0 ± 0.8
300	12.0	13.0	12.3 ± 0.9	0.0	0.0	0.0	13.0	14.0	13.3 ± 0.7
400	17.0	19.0	18.3 ± 0.8	16.0	18.0	17.0 ± 0.9	17.0	19.0	18.3 ± 0.6
500	19.0	21.0	20.3 ± 0.7	17.0	19.0	18.0 ± 0.9	21.0	22.0	21.3 ± 0.9
Negative control^a	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
Positive control^b	22.0	23.0	22.3	18.0	20.0	18.6	23.0	24.0	23.3

Values are mean zones of inhibition (mm) SD of 3 replicate tests; ^asterile distilled water; ^bstandard antibiotic (Amoxycillin/1 mg/mL)

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