کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6404848 | 1628534 | 2013 | 7 صفحه PDF | دانلود رایگان |
The migration of antimicrobial (AM) agents carvacrol, thymol and linalool from heat pressed and coated starch-based packaging films into isooctane was investigated and the release of the agents consistently obeyed first-order kinetics. When the test temperature was increased from 15 to 35 °C, the diffusion coefficients increased from 6.3 Ã 10â13 to 12.9 Ã 10â13 mâ2 sâ1 for carvacrol, from 12.0 Ã 10â13 to 29.7 Ã 10â13 mâ2 sâ1 for thymol and from 9.5 Ã 10â13 to 19.0 Ã 10â13 mâ2 sâ1 for linalool from the heat pressed starch-based films. The diffusion coefficients of carvacrol, thymol and linalool from coated starch-based films containing increased from 2.2 Ã 10â13 to 8.7 Ã 10â13 mâ2 sâ1, from 2.7 Ã 10â13 to 6.1 Ã 10â13 mâ2 sâ1 and from 5.1 Ã 10â13 to 9.4 Ã 10â13 mâ2 sâ1 respectively between 15 and 35 °C. The activation energies for the migration of carvacrol, thymol and linalool from the heat pressed films were 26.2, 33.6 and 25.5 kJ molâ1 respectively and those for the migration from the coated systems were 31.3, 3.0 and 22.5 kJ molâ1 respectively. The results suggest that the AM agents show a potential for use as AM packaging materials.
⺠The migration of AM agents from starch-based films into isooctane was investigated. ⺠The release of AM agents obeyed first-order kinetics. âºÂ The AM agents show potential for use as AM packaging materials.
Journal: LWT - Food Science and Technology - Volume 50, Issue 2, March 2013, Pages 432-438