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Migration of model contaminants from PET bottles: influence of temperature, food simulant and functional barrier

Widén, Heléne LU ; Leufven, A and Nielsen, T (2004) In Food Additives and Contaminants 21(10). p.993-1006
Abstract
To simulate post-consumer recycled plastics, selected model contaminants were incorporated into PET bottles using a time saving method. Migration into 3% acetic acid, a cola-type beverage and 95% ethanol was followed during 1 year of storage at 20 and 40degreesC. Aroma compounds previously found in post-consumer PET material were used as model contaminants. Benzaldehyde was found to migrate to the highest extent. Storage at 40degreesC affected the bottle material and this might be one reason for the high migration values of these bottles. Migration into ethanol was up to 20 times higher than into 3% acetic acid or a cola-type beverage. Bottles with a functional barrier resisted migration into food simulants even when filled with 95%... (More)
To simulate post-consumer recycled plastics, selected model contaminants were incorporated into PET bottles using a time saving method. Migration into 3% acetic acid, a cola-type beverage and 95% ethanol was followed during 1 year of storage at 20 and 40degreesC. Aroma compounds previously found in post-consumer PET material were used as model contaminants. Benzaldehyde was found to migrate to the highest extent. Storage at 40degreesC affected the bottle material and this might be one reason for the high migration values of these bottles. Migration into ethanol was up to 20 times higher than into 3% acetic acid or a cola-type beverage. Bottles with a functional barrier resisted migration into food simulants even when filled with 95% ethanol and stored for I year at 40degreesC. Differential scanning calorimetry measurements showed that ethanol was interacting with the plastic material. This resulted in a lower glass transition temperature of bottles stored with ethanol compared with bottles stored empty or with other food simulants. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Food Additives and Contaminants
volume
21
issue
10
pages
993 - 1006
publisher
Taylor & Francis
external identifiers
  • wos:000225564300008
  • scopus:10044265291
ISSN
0265-203X
DOI
10.1080/02652030400009217
language
English
LU publication?
yes
id
9cb02f32-2eb7-492d-82c3-306f21acb1c7 (old id 151412)
date added to LUP
2007-07-18 12:05:24
date last changed
2017-10-08 04:19:45
@article{9cb02f32-2eb7-492d-82c3-306f21acb1c7,
  abstract     = {To simulate post-consumer recycled plastics, selected model contaminants were incorporated into PET bottles using a time saving method. Migration into 3% acetic acid, a cola-type beverage and 95% ethanol was followed during 1 year of storage at 20 and 40degreesC. Aroma compounds previously found in post-consumer PET material were used as model contaminants. Benzaldehyde was found to migrate to the highest extent. Storage at 40degreesC affected the bottle material and this might be one reason for the high migration values of these bottles. Migration into ethanol was up to 20 times higher than into 3% acetic acid or a cola-type beverage. Bottles with a functional barrier resisted migration into food simulants even when filled with 95% ethanol and stored for I year at 40degreesC. Differential scanning calorimetry measurements showed that ethanol was interacting with the plastic material. This resulted in a lower glass transition temperature of bottles stored with ethanol compared with bottles stored empty or with other food simulants.},
  author       = {Widén, Heléne and Leufven, A and Nielsen, T},
  issn         = {0265-203X},
  language     = {eng},
  number       = {10},
  pages        = {993--1006},
  publisher    = {Taylor & Francis},
  series       = {Food Additives and Contaminants},
  title        = {Migration of model contaminants from PET bottles: influence of temperature, food simulant and functional barrier},
  url          = {http://dx.doi.org/10.1080/02652030400009217},
  volume       = {21},
  year         = {2004},
}