Phytochemical Screening, Antioxidant, and Antimicrobial Activities of Seven Underinvestigated Medicinal Plants against Microbial Pathogens

Table 4

Minimum inhibitory concentration (MIC in µg/mL), minimum bactericidal or fungicidal concentration (MBC or MFC in µg/mL), and MBC or MFC/MIC ratio of the seven selected medicinal plants.

		Microorganisms
		Ec	Sa	Ps	Ea	Pa	Vc06	Ca	Ct	Cp	Ck
H. decumbens	MIC	1024	128	32	256	—	128	256	128	256	16
	MBC	—	256	64	512	—	256	1024	512	512	64
	MBC/MIC or MFC/MIC	—	2	2	2	—	2	4	2	2	4
L. macrocarpa	MIC	2048	—	—	—	—	1024	256	1024	—	1024
	MBC	—	—	—	—	—	2048	1024	—	—	—
	MBC/MIC or MFC/MIC	—	—	—	—	—	2	4	—	—	—
T. mauritianum	MIC	128	128	512	16	256	64	256	128	512	64
	MBC	256	256	1024	32	512	256	512	512	1024	256
	MBC/MIC or MFC/MIC	2	2	2	2	2	4	2	4	2	4
C. stelluliferum	MIC	128	512	32	1024	—	512	128	512	1024	—
	MBC	256	1024	128	—	—	512	512	—	—	—
	MBC/MIC or MFC/MIC	2	2	4	—	—	1	4	—	—	—
A. manianna	MIC	256	1024	2048	—	—	2048	64	512	512	—
	MBC	1024	2048	—	—	—	—	256	1024	1024	—
	MBC/MIC or MFC/MIC	4	2	—	—	—	—	4	4	4	—
C. bougheyanum	MIC	256	512	1024	256	—	64	128	512	256	256
	MBC	512	512	2048	512	—	128	512	—	256	1024
	MBC/MIC or MFC/MIC	2	1	2	2	—		4	—	1	4
P. peduncularis	MIC	128	1024	128	16	1024	128	64	512	128	32
	MBC	512	—	512	32	2048	256	128	512	512	128
	MBC/MIC or MFC/MIC	2	—	2	2	2	2	2	1	2	4
Ciprofloxacin	MIC	0.25	0.5	1	0.5	0.5	1	Nd	Nd	Nd	Nd
	MBC	0.5	1	2	1	1	2	Nd	Nd	Nd	Nd
	MBC/MIC or MFC/MIC	2	2	2	2	2	2	Nd	Nd	Nd	Nd
Ketoconazole	MIC	Nd	Nd	Nd	Nd	Nd	Nd	4	8	2	4
	MBC	Nd	Nd	Nd	Nd	Nd	Nd	8	16	8	4
	MBC/MIC or MFC/MIC	Nd	Nd	Nd	Nd	Nd	Nd	2	2	4	1

MIC: minimum inhibitory concentration, MBC: minimum bactericidal concentration, MFC: minimum fungicidal concentration, Ec: E. coli, Sa: S. aureus, Ps: P. stuartii, Ea: E. aerogenesis, Pa: P. aeruginosa, Vc: V. cholerae C06, Ca: C. albicans, Ct: C. tropicalis, Cp: C. parapsilosis, Ck: C. krusei, —: >2048 μg/mL, Nd: not determined.