Phytochemical Constituents, Antioxidant, Cytotoxicity, Antimicrobial, Antitrypanosomal, and Antimalarial Potentials of the Crude Extracts of Callistemon citrinus

Table 6

Minimum bactericidal concentration (MBC) values (mg/mL) for ethyl acetate, methanol extracts and standard drug.

Bacteria	Ethyl acetate leaf extract	Methanol leaf extract	Ciprofloxacin positive control	DMSO negative control
Aeromonas hydrophila ACC	Bacteriostatic at 0.025 ± 0.00	Bacteriostatic at 0.15 ± 0.01	Bactericidal at 0.05 ± 0.02	0.4 mL VG
Escherichia coli ATCC 35150	Bactericidal at 0.100 ± 0.00	Bactericidal at 0.100 ± 0.00	Bactericidal at 0.05 ± 0.00	0.4 mL VG
Vibro alginolyticus DSM 2171	Bacteriostatic at 0.025 ± 0.00	Bacteriostatic at 0.100 ± 0.00	Bactericidal at 0.05 ± 0.01	0.4 mL VG
Salmonella typhi ACC	Bacteriostatic at 0.025 ± 0.01	Bacteriostatic at 0.025 ± 0.00	Bactericidal at 0.05 ± 0.01	0.4 mL VG
Pseudomonas aeruginosa ACC	Bactericidal at 0.100 ± 0.00	Bactericidal at 0.100 ± 0.00	Bactericidal at 0.05 ± 0.02	0.4 mL VG
Staphylococcal enteritis ACC	Bacteriostatic at 0.025 ± 0.01	Bacteriostatic at 0.100 ± 0.00	Bactericidal at 0.05 ± 0.00	0.4 mL VG
Staphylococcus aureus ACC	Bactericidal at 0.100 ± 0.00	Bacteriostatic at 0.025 ± 0.01	Bactericidal at 0.05 ± 0.01	0.4 mL VG
Listeria monocytogenes ACC	Bacteriostatic at 0.025 ± 0.00	Bacteriostatic at 0.100 ± 0.01	Bactericidal at 0.05 ± 0.01	0.4 mL VG

VG = visible growth; NVG = no visible growth.