Table 3 The antibacterial activity of extracted plantaricin (EX-PL) and plantaricin-incorporated silver nanoparticles (PL-SNPs) expressed as diameter of inhibition zones (mm)

L. monocytogenes ATCC 7644

0.0 ± 0.0

14.5^a ± 0.0

P. mirabilis ATCC 7002

10.5^a ± 0.4

6.5 ± 0.3^c

E. coli ATCC 25922

15.0^c ± 0.3

19.0^a ± 3.0

S. aureus ATCC 29213

11.5^c ± 0.0

15.6^a ± 0.3

Ps. aeruginosa ATCC 27853

11.5^c ± 0.1

14.0^a ± 0.1

Salm. Paratyphi B ATCC 10719

12.6^b ± 0.4

14.5^a ± 0.3

Strep. faecalis ATCC 8043

12.0^c ± 0.2

15.0^a ± 0.3

B. cereus ATCC 33018

8.5^d ± 0.3

14.5^a ± 0.5