. 2021 Dec 8;11(12):3337. doi: 10.3390/nano11123337

Table 2.

Antimicrobial effect of SPI films.

Films	Bacteria	Viable Colony Numbers (CFU/mL)	Antibacterial Potency (%)
SPI	E. coli	926 ± 4.24 ^a	0
SPI	S. aureus	813 ± 32.53 ^a	0
SPI/MPE	E. coli	730 ± 8.49 ^b	21.17
SPI/MPE	S. aureus	329 ± 6.36 ^b	59.53
SPI/MPE/ZnO^1%	E. coli	512 ± 33.23 ^c	44.71
SPI/MPE/ZnO^1%	S. aureus	57 ± 0.71 ^c	92.99
SPI/MPE/ZnO^3%	E. coli	0	100
SPI/MPE/ZnO^3%	S. aureus	22 ± 1.41 ^c	97.29
SPI/MPE/ZnO^5%	E. coli	0	100
SPI/MPE/ZnO^5%	S. aureus	21 ± 0.71 ^c	97.42

The values are averaged ± Standard deviation. Different letters in the same column show a significant difference (p ≤ 0.05).