Molecular-Based Identification of Actinomycetes Species That Synthesize Antibacterial Silver Nanoparticles

Table 1

Evaluation of the antibacterial activity of actinomycete metabolite-mediated AgNPs against selected bacteria pathogens.

Bioactivity	Inhibition zone (mm) against selected bacterial pathogens
	E. coli	S. typhi	S. boydii
KDT32	19.0 ± 1.4^b	15.5 ± 0.7^c	0 ± 0.0^c
KGT32	20.5 ± 0.7^b	15.0 ± 0.0^c	0 ± 0.0^c
KDT32-AgNPs	22.0 ± 1.4^b	19.0 ± 1.4^b	0 ± 0.0^c
KGT32-AgNPs	21.5 ± 0.7^b	17.0 ± 0.0^bc	0 ± 0.0^c
AgNO3	20.5 ± 0.7^b	15.5 ± 0.7^c	11.0 ± 0.0^b
STP	29.0 ± 1.4^a	25.5 ± 0.7^a	25.5 ± 0.7^a
Negative control	0 ± 0.0^c	0 ± 0.0^d	0 ± 0.0^c

STP (streptomycin or positive control), sterile water (negative control), and 0 (no activity observed). Values are means ± SD. The values not sharing a common superscript letter (a > b > c > d) in the same column are significantly different at  < 0.05.