Table 3. Antibacterial Activity of PLA Films against E. coli and S. aureus.
E. coli |
S. aureus |
|||
---|---|---|---|---|
samples | log reduction (R) | antibacterial rate (%) | log reduction (R) | antibacterial rate (%) |
contrast sample (PE) | ||||
PLA films | 0.17 | 32 | 0.55 | 72 |
PLA-g-PAA-2 | 0.21 | 38 | 0.43 | 63 |
PLA-g-PAA-Ag-1 | 4.0 | >99 | 0.8 | 84 |
PLA-g-PAA-Ag-2 | >5.5 | >99 | 2.3 | 99 |
PLA-g-PAA-Ag-3 | >5.5 | >99 | 3.1 | >99 |
PLA-g-PAA-Ag-4 | >6.3 | >99 | >4.6 | >99 |
PLA-g-PAA-Ag-5 | >6.3 | >99 | >4.6 | >99 |
PLA-g-PAA-Ag-6 | >6.3 | >99 | 4.6 | >99 |