. 2007 Feb 16;4(3):352–356. doi: 10.4314/ajtcam.v4i3.31229

Table 3.

MIC, MBC and IC₅₀ values (µ g/ml) of Holarrhena floribunda extracts in the macrodilution assays compared to chloramphenicol.

	Crude extract				Total alkaloid fraction				chloramphenicol
Inhibition parameters Bacterial strains	MIC	MBC	IC₅₀	$\frac{M B C}{M I C}$	MIC	MBC	IC₅₀	$\frac{M B C}{M I C}$	MIC	MBC	IC₅₀	$\frac{M B C}{M I C}$
B. cereus	215	390	110	1.8	150	280	70	1.8	18.5	33	9.5	1.8
B. subtilis	185	320	100	1.7	95	170	45	1.8	9	16	4.5	1.8
B. megaterium	175	317	90	1.8	90	160	40	1.8	36	70.5	18	1.9
B. stearother mophilus	115	210	55	1.8	50	105	30	2	8.5	14.5	4.5	1.7