Table 3.
Antibacterial activity of cellulose acetate membranes incorporated with Rosemary and Aloe Vera oil extracts against E. coli and B. subtilis in sliced cheese
| Membranes | Strains | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| B. subtilis (Gram-positive) | E. coli (Gram-negative) | |||||||||
| Time (day) | ||||||||||
| 0 | 1 | 3 | 5 | 7 | 0 | 1 | 3 | 5 | 7 | |
| Control | 310 ± 6.2 | 337 ± 6.2 | 349 ± 7 | 363 ± 7.2 | 381 ± 7.6 | 430 ± 8.6 | 437 ± 8.7 | 429 ± 8.5 | 463 ± 9 | 481 ± 9.6 |
| CA | 342 ± 6.9 | 332 ± 5.2 | 337 ± 5.1 | 337 ± 5.4 | 339 ± 5.6 | 472 ± 9.4 | 479 ± 9.6 | 464 ± 9.2 | 472 ± 9.2 | 469 ± 9.2 |
| CA/RM1 | 223 ± 4.5 | 235 ± 4.8 | 267 ± 5.8 | 253 ± 5 | 271 ± 5.5 | 282 ± 5.5 | 273 ± 5.2 | 275 ± 5.3 | 272 ± 5.1 | 278 ± 5.3 |
| CA/RM2 | 94 ± 2 | 88 ± 1.8 | 97 ± 2.5 | 119 ± 2.3 | 103 ± 2 | 88 ± 1.8 | 83 ± 1.6 | 74 ± 1.3 | 98 ± 1.9 | 93 ± 1.8 |
| CA/RM3 | 0 | 0 | 0 | 0 | 0 | 9 ± 0.2 | 5 ± 0.1 | 0 | 0 | 0 |
| CA/AV1 | 290 ± 5.5 | 281 ± 5.3 | 294 ± 6 | 305 ± 6 | 317 ± 5.9 | 342 ± 6.8 | 332 ± 6.7 | 337 ± 6.7 | 337 ± 6.7 | 339 ± 6.8 |
| CA/AV2 | 104 ± 2.5 | 138 ± 4.2 | 197 ± 3.9 | 169 ± 3.4 | 203 ± 4 | 143 ± 2.8 | 135 ± 2.6 | 137 ± 2.6 | 123 ± 2.4 | 141 ± 2.7 |
| CA/AV3 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 0 |
Controle treatment refer to infected cheese uncovered by membranes