Table 5.
Antibacterial activity of the chitosan and rosemary alcoholic extract incorporated into PLA-based materials against Bacillus cereus, Salmonella typhymurium and Escherichia coli.
| Sample | Inhibition (%) | |||||
|---|---|---|---|---|---|---|
| Bacillus cereus | Salmonella typhymurium | Escherichia coli | ||||
| 24 h | 48 h | 24 h | 48 h | 24 h | 48 h | |
| LDPE | 6 | 18 | 3 | 8 | 7 | 13 |
| PLA/PEG | 45 | 91 | 29 | 77 | 69 | 94 |
| PLA/PEG/3CS | 86 | 100 | 58 | 100 | 73 | 100 |
| PLA/PEG/6CS | 86 | 100 | 58 | 100 | 73 | 100 |
| PLA/PEG/0.5R | 86 | 100 | 48 | 100 | 76 | 100 |
| PLA/PEG/3CS/0.5R | 100 | 100 | 81 | 100 | 76 | 100 |
| PLA/PEG/6CS/0.5R | 100 | 100 | 90 | 100 | 82 | 100 |