Table 5.

Antibacterial activity of the aqueous extracts from W. somnifera (mg/mL) expressed as MIC and MBC.

	S. aureus ATCC 6538		MRSA 6374		MRSA N315		MRSA 18582		MRSA 12673		S. epidermidis ATCC 14990
Sample No	MIC	MBC	MIC	MBC	MIC	MBC	MIC	MBC	MIC	MBC	MIC	MBC
1.	32	>32	8	32	>32	>32	16	16	>32	>32	16	>32
2.	2	8	0.5	1	4	32	8	16	32	>32	4	32
3.	16	32	8	32	>32	>32	>32	>32	>32	>32	>32	>32
4.	1	16	4	>32	2	4	2	8	4	>32	4	32
6.	2	8	8	>32	4	8	4	16	8	>32	4	16
8.	4	16	16	>32	4	8	4	8	32	>32	4	16
9.	2	8	1	4	2	32	4	16	8	>32	4	16
10.	16	>32	1	>32	4	>32	4	>32	2	>32	4	8
11.	16	>32	8	>32	8	>32	4	>32	16	>32	4	32
15.	4	32	4	>32	2	>32	8	>32	4	>32	2	8
	S. pneumoniae		S. pyogenes		E. hirae		E. faecalis		B.subtillis ATCC 6633		C. diphtheriae
Sample No	MIC	MBC	MIC	MBC	MIC	MBC	MIC	MBC	MIC	MBC	MIC	MBC
1.	16	32	0.25	2	32	>32	32	>32	2	4	0.5	1
2.	8	16	0.5	1	32	>32	8	>32	4	4	1	0.5
3.	>32	>32	0.25	>32	>32	>32	>32	>32	>32	>32	0.25	>32
4.	4	8	0.25	0.25	8	>32	4	8	0.5	1	0.1	0.25
6.	4	8	0.25	0.5	16	>32	4	>32	1	2	1	1
8.	8	16	4	>32	>32	>32	8	>32	4	4	8	8
9.	4	8	4	>32	16	>32	1	>32	8	8	>32	>32
10.	4	8	4	>32	16	>32	4	>32	1	1	0.5	4
11.	4	8	4	>32	32	>32	4	>32	1	1	>32	>32
15.	2	8	4	>32	8	>32	1	>32	0.5	0.5	>32	>32

MIC: minimum inhibitory concentration; MBC: minimum bactericidal concentration.