Document Detail


Polyethylene terephthalate recycling for food-contact applications: testing, safety and technologies: a global perspective.
MedLine Citation:
PMID:  11962700     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Studies were undertaken to determine the composition of five different types of post-consumer polyethylene terephthalate (PET) feedstreams to ascertain the relative amounts of food containers and non-food containers. Deposit post-consumer PET feedstreams contained approximately 100% food containers, whereas curbside feedstreams contained from 0.04 to 6% non-food containers. Analysis of the PET containers from the different type feedstreams after the containers were subjected to a commercial PET wash system and after processing with a proprietary decontamination technology was accomplished to determine the levels of compounds in the post-consumer PET after the various stages of processing. Comprehensive thermal desorption/GC/MS, purge and trap GC/MS purge and trap GC quantitation, PET dissolution and extraction GC analysis and PET dissolution HPLC analysis established the types and concentrations of compounds that absorb in the PET from the various types of postconsumer feedstreams. A total of 121 compounds were identified in the five different feedstreams. The concentration of absorbed compounds remaining in the deposit material and the non-food applications material after the commercial wash was 28 and 39mgkg(-1) respectively. Analysis of the feedstreams after subjecting the material to a proprietary decontamination process demonstrated the ability of removing all the absorbed compounds to a level below the level of the threshold of regulation. The safety of sourcing of post-consumer PET from food use applications verses non-food use applications of PET has been established.
Authors:
Forrest L Bayer
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Food additives and contaminants     Volume:  19 Suppl     ISSN:  0265-203X     ISO Abbreviation:  Food Addit Contam     Publication Date:  2002  
Date Detail:
Created Date:  2002-04-18     Completed Date:  2002-04-29     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8500474     Medline TA:  Food Addit Contam     Country:  England    
Other Details:
Languages:  eng     Pagination:  111-34     Citation Subset:  IM    
Affiliation:
The Coca-Cola Company, Atlanta, GA 30313, USA. fbayer@na.ko.com
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MeSH Terms
Descriptor/Qualifier:
Chromatography, High Pressure Liquid / methods
Consumer Product Safety
Equipment Reuse
Food Contamination*
Food Packaging*
Gas Chromatography-Mass Spectrometry / methods
Humans
Polyethylene Terephthalates / chemistry*
Product Packaging
Chemical
Reg. No./Substance:
0/Polyethylene Terephthalates

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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