Preliminary Study on the Antibacterial Activities and Antibacterial Guided Fractionation of Some Common Medicinal Plants Practices in Itum Bahal, Kathmandu Valley of Nepal

Table 2

Measurement of the bacterial zone of inhibition shown by fifteen investigated plant samples.

Concentrations (1 mg/disc)	Zone of inhibition (mm)
Samples		S. aureus	B. subtilis	E. coli	S. typhi
A. catechu		ND	ND	ND	ND
A. rugata		ND	ND	ND	ND
B. utilis		ND	ND	ND	ND
C. sativa		ND	ND	ND	ND
C. repens		ND	ND	ND	ND
D. propinqua		ND	ND	ND	ND
E. sphaericus		ND	ND	ND	ND
F. megacarpum		ND	ND	ND	ND
F. religiosa		ND	ND	ND	ND
M. repandus		10.00 ± 0.57	13.00 ± 0.57	16.33 ± 0.66	21.66 ± 0.32
N. nucifera		ND	ND	ND	ND
P. guajava		ND	ND	ND	ND
Q. infectoria		30.33 ± 0.32	25.66 ± 0.66	12.00 ± 0.57	14.00 ± 0
T. sinensis		ND	ND	ND	ND
V. negundo		ND	ND	ND	ND
Amoxicillin		32.33 ± 2.18	17.66 ± 0.32	0	0
Norfloxacin		0	0	11.00 ± 0.66	30.00 ± 0.87

All the values represented mean ± SEM (n = 3). ND indicates ZOI are not detected at the examined concentration.