Phytochemical Analysis and Antimicrobial/Antioxidant Activity of Cynodon dactylon (L.) Pers. Rhizome Methanolic Extract

Table 5

Inhibitory activity of the methanolic extract of C. dactylon rhizome on the growth of microorganisms.

Inhabitation zone diameter (mm)
A. niger	S. epidermidis	B. cereus	E. coli	P. aeruginosa	Concentration (ppm)
0.00 ± 0.0^d	2.3 ± 0.1^e	1.8 ± 0.08^e	3.34 ± 0.18^d	0.00 ± 0.0^d	Control (0)
0.00 ± 0.0^d	9.1 ± 0.2^d	11.2 ± 0.15^d	10.25 ± 0.4^c	7.3 ± 0.2^c	200
12.6 ± 0.3^c	12.5 ± 0.35^c	14.8 ± 0.25^c	15.3 ± 0.3^ab	10.4 ± 0.3^b	600
14.4 ± 0.45^b	15.7 ± 0.4^ab	18.3 ± 0.4^b	16.8 ± 0.5^a	12.8 ± 0.15^a	1000
22.6 ± 0.28^a	17.52 ± 0.17^a	20.8 ± 0.5^a	16.1 ± 0.1^a	0.00 ± 0.0^d	Gentamicin

Different letters indicate statistically significant differences between groups as determined by the Duncan test ().