Table 2.

MIC and MBC/MFC values for crude extracts of plant parts against Multi-Drug Resistant strains of Nosocomial and Community Acquired Infections and susceptible standard strains

Microorganism	MIC(µg/mL) and MBC/MFC (µg/mL) of crude herbal extracts
	A. nilotica*			T. arjuna				E. globulus				S. aromaticum				C. zeylanicum
	MIC	MBC/MFC		MIC		MBC/MFC		MIC		MBC/MFC		MIC		MBC/MFC		MIC		MBC/MFC
S. mutans	78	313		1560		3130		3130		6250		390		780		195		390
ATCC-700610
S. aureus	39	78		780		1560		6250		12500		780		1560		390		1560
ATCC-29213
E. faecalis	9.75	78		1560		3130		3130		12500		195		1560		97.5		1560
ATCC-29212
S. bovis	39	78		1560		3130		3130		12500		780		1560		195		390
ATCC-9809
P. aeruginosa	39	39		-		-		-		-		390		1560		390		1560
ATCC-27853
S. typhimurium	9.75	39		-		-		-		-		1560		1560		1560		3130
ATCC-13311
E. coli	19.5	39		-		-		-		-		780		1560		390		1560
ATCC-25922
C. albicans	4.9	19.5		-		-		-		-		156		156		19.5		78
ATCC-10231
K. pneumoniae	9.75	78		-		-		-		-		390		6250		195		3130
ATCC-700803
E. coli [10] a)	156	313 (3/10)		-		-		-		-		6250		12500 (10/10)		3130		6250 (7/10) 12500 (3/10)
	313	625 (7/10)		-		-		-		-						6250
E. coli [16] b)	19.5	39 (3/16)		-		-		-		-		390		1560 (2/16) 3130 (14/16)		195		1560 (11/16) 3130 (5/16)
	39	156 (13/16)		-		-		-		-		1560				780
C. albicans [18]c)	9.5	39 (9/18)		-		-		-		-		390		780 (3/18) 3130 (15/18)		780		1560 (18/18)
	39	78 (9/18)		-		-		-		-		780
K. pneumoniae [14]d)	156	313 (11/14)		-		-		-		-		780		1560 (4/14)		390		1560 (11/14)
	313	1250 (3/14)		-		-		-		-		1560		3130 (10/14)		780		3130 (3/14)

MIC = minimum inhibitory concentration; MBC = minimum bactericidal concentration; MFC = minimum fungicidal concentration; a) & c) = isolates of nosocomial infection; b) & d) = isolates of community acquired infection; * value in parentheses indicates number of isolates out of total isolates tested.; – = No activity at the concentration of the extracts tested.