Table 3.

Antimicrobial screening test of the ethanolic leaf extract of B. macrophylla using various bacterial strains.

Bacterial Strains		Inhibition Zones (mm)						Ciprofloxacin
		500 mg/mL	100 mg/mL	10 mg/mL	1 mg/mL	100 µg/mL	10 µg/mL	500 µg/mL
Gram (−)	Escherichia coli	20.50 ± 0.60	17.20 ± 0.31	11.50 ± 0.50	No antimicrobial activity			30.33 ± 1.15
	Shigella flexneri	22.50 ± 0.50	17.83 ± 0.29	15.5 ± 0.83	No antimicrobial activity			33.50 ± 0.86
	Vibrio cholerae	22.16 ± 1.25	17.50 ± 0.50	13.16 ± 1.26	11.17 ± 0.29	No antimicrobial activity		28.33 ± 0.29
	Pseudomonas aeruginosa	16.66 ± 0.29	14.83 ± 0.29	12.83 ± 0.76	No antimicrobial activity			25.42 ± 0.41
Gram (+)	Staphylococcus aureus	12.86 ± 0.15	No antimicrobial activity					18.66 ± 1.54
	Listeria monocytogenes	17.83 ± 0.76	16.16 ± 1.04	14.83 ± 0.29	13.5 ± 0.50	11.50 ± 0.50	Not observed	30.66 ± 0.58
	Bacillus cereus	24.83 ± 0.29	22.5 ± 0.5	17.83 ± 0.29	18.17 ± 0.29	17.5 ± 0.5	17.83 ± 0.76	26.12 ± 0.15
	Enterococcus faecalis	16.00 ± 0.50	13.00 ± 0.60	No antimicrobial activity				20.66 ± 0.29
	Streptococcus mutans	No antimicrobial activity						23.66 ± 0.29
Mycete	Candida albicans	21.5 ± 1.3	21 ± 1	17.83 ± 0.76	11.83 ± 0.76	No antimicrobial activity		25.66 ± 0.34