Free Radical Scavenging, Anti-Infectious, and Toxicity Activities from Stenochlaena palustris (Burm.f.) Bedd. Extracts

Table 3

Antibacterial of S. palustris (Burm.f.) Bedd. extracts at a concentration of 500 μg/disc for Gram-negative and Gram-positive bacteria.

Microorganisms	Inhibition zone (cm)
	n-Hexane	Dichloromethane	Ethyl acetate	Water extract	Chloramphenicol
Bacillus subtilis	0.00 ± 0^e	1.30 ± 0.03^b	1.11 ± 0.01^c	0.73 ± 0.02^d	3.18 ± 0.02^a
Bacillus cereus	0.00 ± 0^d	0.85 ± 0.02^bc	0.90 ± 0.01^b	0.73 ± 0.02^c	2.57 ± 0.04^a
Streptococcus aureus	0.75 ± 0.02^d	0.93 ± 0.03^b	0.85 ± 0.01^c	0.73 ± 0.02^d	2.91 ± 0.03^a
Vibrio parahaemolyticus	0.00 ± ^d	0.86 ± ^c	0.93 ±^b	0.82 ±^c	2.15 ±^a
Listeria monocytogenes	0.00 ± 0^c	0.00 ± 0^c	0.84 ± 0.03^b	0.00 ± 0^c	2.51 ± 0.05^a
Salmonella typhi	0.00 ± 0^c	0.82 ± 0.02^b	0.83 ± 0.02^b	0.77 ± 0.01^b	2.67 ± 0.03^a
Escherichia coli	0.00 ± 0^b	0.00 ± 0^b	0.00 ± 0^b	0.00 ± 0^b	2.95 ± 0.01^a

^a–emeans in the same row with different lowercase letters differed significantly ( < 0.05). Bold: the highest inhibition on each indicator microorganism.