Research Article

Antistaphylococcal Activity of Extracts, Fractions, and Compounds of Acacia polyacantha Wild (Fabaceae)

Table 2

MICs (μg/mL) of stem bark and leaf fractions.

BacteriaFractions, MICs, and MBCs (in parentheses) in μg/mL
F1F2F3F4F8F10F12

ATCC2592364(-)16(-)512(-)256(-)64(-)512(-)256(-)512(-)
MRSA 332(-)512(-)64(-)512(-)256(-)64(-)256(-)128(-)
MRSA 464(-)64(-)512(-)512(-)128(-)
MRSA 664(-)256(-)128(-)64(-)512(-)
MRSA 864(-)32(-)256(-)64(-)≤4(-)512(-)512(-)
MRSA 9128(-)64(-)128(-)128(-)128(-)256(-)512(-)
MRSA 1132(-)512(-)512(-)128(-)64(-)512(-)32(-)
MRSA 1264(-)256(-)64(-)256(-)32(-)512(-)512(-)
MSSA 0164(-)256(-)512(-)64(-)512(-)128(-)
SA 0164(-)512(-)512(-)128(-)
SA 0716(-)256(-)512(-)256(-)
SA 18512(-)128(-)128(-)256(-)256(-)16(-)16(-)
SA 2364(-)128(-)256(-)512(-)64(-)
SA 8864(-)512(-)256(-)512(-)256(-)256

(-): ≥512 μg/ml; MIC: minimum inhibitory concentration; MBC: minimum bactericidal concentration; MRSA: methicillin-resistant Staphylococcus aureus; SA: Staphylococcus aureus; MSSA: methicillin susceptible Staphylococcus aureus; F: fraction from leaves; F′: fractions from barks; fractions F5F7, F9, , , , and were not active.