Extracellular Biosynthesis of Silver Nanoparticles Using Escherichia coli ATCC 8739, Bacillus subtilis ATCC 6633, and Streptococcus thermophilus ESh1 and Their Antimicrobial Activities

Table 1

Antimicrobial activity of the synthesized Ag nanoparticles on different microorganisms (inhibition zone).

Tested organisms	E. coli Ag nanoparticles	B. subtilus Ag nanoparticles	St. thermophilus Ag nanoparticles
E. coli	6.3	5.5	5.5
B. subtilus	9.7	5.2	4.8
S. typhumirum	3.5	3.5	4.3
K. pneumonia	4.6	2.6	3.7
St. aureus	5.4	3.9	4.6
P. aeruginosa	3.8	3.4	2.5
C. albicans	5.0	6.8	4.4