Table 4.
Effect of high pressure treatment on the migration behavior of PLA/AgNPs nanocomposite films.
| Samples AgNPs (wt.%) | Pressure (MPa) | 5d (μg/kg) | 10d (μg/kg) | 20d (μg/kg) | 30d (μg/kg) | 40d (μg/kg) |
|---|---|---|---|---|---|---|
| 3 | 0 | 138 ± 17 aBC | 223 ± 15 bAB | 348 ± 16 cABC | 357 ± 25 cBC | 369 ± 20 cAB |
| 3 | 200 | 82 ± 9 aA | 181 ± 11 bA | 302 ± 27 cA | 288 ± 14 cA | 312 ± 18 cA |
| 3 | 400 | 99 ± 11 aAB | 182 ± 17 bA | 330 ± 25 cAB | 339 ± 11 cAC | 341 ± 21 cAB |
| 5 | 0 | 169 ± 12 aC | 262 ± 22 bB | 412 ± 17 cC | 424 ± 18 cD | 434 ± 13 cC |
| 5 | 200 | 128 ± 23 aABC | 229 ± 13 bAB | 333 ± 13 cAB | 341 ± 16 cCB | 354 ± 10 cAB |
| 5 | 400 | 131 ± 12 aABC | 235 ± 18 bAB | 385 ± 15 cBC | 395 ± 18 cAD | 409 ± 16 cAC |
a–c Values followed by different superscripts in the same row denote significant difference (p < 0.05), where a is the lowest value; A–D Values followed by different superscripts in the same column denote significant difference (p < 0.05), where A is the lowest value.