Antibacterial and Antioxidant Properties of the Methanolic Extract of the Stem Bark of Pteleopsis hylodendron (Combretaceae)

Table 2

MIC and MBC (μg/mL) of the methanolic extract of P. hylodendron.

	Crude extract			Reference antibiotics
Bacteria	P. hylodendron			Amoxicillin			Ciprofloxacin			Gentamicin
	MIC	MBC	MBC/MIC	MIC	MBC	MBC/MIC	MIC	MBC	MBC/MIC	MIC	MBC	MBC/MIC
Gram^− bacteria
E. coli ATCC 11775	3125	12500	4	128	—	—	4	4	1	16	128	8
E. coli	1562	—	—	1	1	1	8	8	1	1	1	1
P. aeruginosa ATCC 27853	781	781	1	128	—	—	1	16	16	8	16	2
P. mirabilis	781	6250	8	1	8	8	1	1	1	2	16	8
S. flexneri	3125	—	—	32	64	2	0.25	1	4	0.25	0.25	1
S. paratyphi A	12500	—	—	—	—	—	0.125	0.5	4	2	2	1
S. paratyphi B	1562	6250	4	1	8	8	0.5	2	4	2	16	8
S. typhi ATCC 6539	1562	6250	4	—	—	—	0.25	2	8	32	128	4
Gram^+ bacteria
E. faecalis ATCC 10541	1562	6250	4	1	1	1	4	16	4	1	1	1
S. aureus ATCC 25922	3125	6250	2	—	—	—	8	8	1	4	16	4
S. aureus	781	1562	2	1	—	—	8	8	1	0.25	0.25	1

—:12500 μg/mL for the extract and >128 μg/mL for the reference antibiotics.