Migration of silver from commercial plastic food containers and implications for consumer exposure assessment / (Record no. 149775)

MARC details
000 -LEADER
fixed length control field 02594nab a22002417a 4500
850 ## - HOLDING INSTITUTION
Holding institution เอกสารภาษาไทย (ชั้น 5)
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 190625b2013 xxu||||| |||| 00| 0 eng d
099 ## - LOCAL FREE-TEXT CALL NUMBER (OCLC)
Classification number Repr.M29
100 1# - MAIN ENTRY--PERSONAL NAME
Personal name Goetz, Natalie von.
245 10 - TITLE STATEMENT
Title Migration of silver from commercial plastic food containers and implications for consumer exposure assessment /
author Goetz, Natalie von... [et.al.].
500 ## - GENERAL NOTE
GENERAL NOTE สนใจติดต่อขอรับบริการเอกสารฉบับเต็มที่ one stop service (สำนักหอสมุดฯ) หรือ e-mail ([email protected]) โทร. 0 2201 7254-56, 0 2201 7287-89 (จัดเก็บชั้น 5 - Repr.M29)
518 ## - Year/Month of cataloging
Year/Month YJ2019 M07
520 ## - SUMMARY, ETC.
Summary, etc. Food 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 - Subject-Topical Term
Topical term or geographic name entry element Food Containers.
650 #0 - Subject-Topical Term
Topical term or geographic name entry element Nanoparticles.
700 1# - Added Entry-Personal Name
Name Fabricius, Lars
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Name Glaus, Reto
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Name Weitbrecht, Volker
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Name Günther, Detlef
700 1# - Added Entry-Personal Name
Name Hungerbühler, Konrad
773 ## - Host Item Entry
Title Food Additives & Contaminants: Part A
Related parts 30(3)2013:612-620
International Standard Serial Number 1944-0049
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Source of classification or shelving scheme
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