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KMID : 1007520020110060654
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Food Science and Biotechnology
2002 Volume.11 No. 6 p.654 ~ p.658
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Comparison and Validation of Overall Migration Values from Plastic Food Packaging Materials Obtained with Different Testing Methods as Specified in the Regulations of the USA, EU and Korea or Japan
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Lee, Keun-Taik
Lee, Chang-Sung/Kim, Dong-Joo
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Abstract
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Comparative studies on the overall migration tests for various plastic food packaging materials obtained according to the testing methods and conditions of the USA, EU, and Korea or Japan were carried out. Simulants specified in the corresponding regulations and recommended alternative fatty food simulants, such as iso-octane and 95 and 50% ethanol were used. The overall migration/total non-volatile extractives values(OMVs/TEVs) obtained with non-fatty food simulants (aqueous, acidic, and alcoholic) were well below the limit of 10 mg/dm² according to Directive 90/128/EEC, and thus comparisons among the testing methods and conditions were insignificant. Results of polybutadiene-modified general purpose polystyrene and PVC wrap films obtained with fatty food simulants exceeded the limit levels, 10 mg/dm², irrespective of simulant types and contact time/temperature conditions before applying the reduction factor. Among the fatty simulants, iso-octane generally showed higher OMVs than others for non-polar polyolefins when tested at 40℃ for 24 hr. OMVs obtained with 95% ethanol at 40℃ for 10 days gave equivalent results to those for soybean oil with all types of films tested.
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