In vitro antibacterial activity of Tabernaemontana alternifolia (Roxb) stem bark aqueous extracts against clinical isolates of methicillin resistant Staphylococcus aureus

Table 2 Zones of inhibition and MIC values for T. alternifolia stem bark aqueous extracts against the test organisms

Isolate	Zone of inhibition (mm)			Minimum inhibitory concentration (μg/ml)
Isolate	DAE	SAE	Ciprofloxacin (5 μg/disc)	DAE	SAE	Ciprofloxacin
DMH 2	16	17	27	600	600	0.25
DMH 3	16	16	11	700	650	2
DMH 4	14	14	13	800	800	2
DMH 5	18	19	15	600	600	1.5
DMH 6	13	14	22	800	800	0.25
DMH 7	15	15	21	700	650	0.25
DMH 8	14	14	24	800	800	0.125
DMH 10	15	15	20	700	650	0.25
DMH 11	16	16	16	700	700	1.4
DMH 12	17	17	13	600	600	2.5
DMH 13	16	16	12	700	700	3
DMH 14	14	14	11	800	800	2
ATCC 6633	16	17	25	600	600	0.05
ATCC6538P	17	16	22	600	600	0.15
ATCC12228	17	16	24	600	600	0.1
ATCC 43300	17	17	22	600	600	0.15

Legend: All DMH isolates are Staphylococcus aureus among which DMH 3,10,12,14 are VRSA and all others except DMH2 are MRSA. ATCC 6633: Bacillus subtilis, ATCC 6538P: Staphylococcus aureus, ATCC 12228: Staphylococcus epidermidis, ATCC 43300: MRSA.

ISSN: 1476-0711