| 000 | 02594nab a22002417a 4500 | ||
|---|---|---|---|
| 850 | _aเอกสารภาษาไทย (ชั้น 5) | ||
| 999 |
_c149775 _d149775 |
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| 008 | 190625b2013 xxu||||| |||| 00| 0 eng d | ||
| 099 | _aRepr.M29 | ||
| 100 | 1 |
_aGoetz, Natalie von. _9159847 |
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| 245 | 1 | 0 |
_aMigration of silver from commercial plastic food containers and implications for consumer exposure assessment / _cGoetz, Natalie von... [et.al.]. |
| 500 | _aสนใจติดต่อขอรับบริการเอกสารฉบับเต็มที่ one stop service (สำนักหอสมุดฯ) หรือ e-mail ([email protected]) โทร. 0 2201 7254-56, 0 2201 7287-89 (จัดเก็บชั้น 5 - Repr.M29) | ||
| 518 | _aYJ2019 M07 | ||
| 520 | _aFood storage containers with embedded silver as an antibacterial agent promise longer durability of food. For risk assessment the release of this silver into the stored food and resulting human exposure need to be known. For the purpose of exposure assessment, silver migration from commercial plastic containers with declared content of 'nano-' or 'micro-silver' into different food simulants (water, 10% ethanol, 3% acetic acid, olive oil) was quantitatively determined by ICP-MS and the form of the released silver was investigated. The highest migration of silver was observed for the acidic food simulant with 30 ng silver cm−2 contact surface within 10 days at 20°C. In a second and third use cycle, migration dropped by a factor of up to 10, so that the maximum cumulated release over three use cycles was 34 ng cm−2. The silver release over time was described using a power function and a numerical model that simulates Fickian diffusion through the plastic material. The released silver was found to be in ionic form, but also in the form of silver nanoparticles (around 12%). Consumer exposure to the total amount of silver released from the food containers is low in comparison with the background silver exposure of the general population, but since natural background concentrations are only known for ionic silver, the exposure to silver nanoparticles is not directly comparable with a safe background level. | ||
| 650 | 0 |
_aFood Containers. _9159848 |
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| 650 | 0 |
_aNanoparticles. _9159849 |
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| 700 | 1 |
_aFabricius, Lars _9159850 |
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| 700 | 1 |
_aGlaus, Reto _9159851 |
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| 700 | 1 |
_aWeitbrecht, Volker _9159852 |
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| 700 | 1 |
_aGünther, Detlef _9159853 |
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| 700 | 1 |
_aHungerbühler, Konrad _9159854 |
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| 773 |
_tFood Additives & Contaminants: Part A _g30(3)2013:612-620 _x1944-0049 |
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| 942 | _2lcc | ||