Risk Monitoring of Phthalate Plasticizer Migration and Micro Plastics Content in the Plastics Products for Food
Evaluation of migration risk of phthalic acid esters(PAEs)plasticizers from the plastics products for food and analysis of micro plastics contents.The 92 batches of plastics products for food were collected,and the PAEs contents in the samples were detected using gas chromatography-mass spectrometry according to the relevant standards to investigate the migration risk of PAEs in the samples.The micro plastics particles in the samples were detected by Fourier Infrared Micro Imaging Spectrometer,and the micro plastics components were identified.The PAEs were detected in 4 batches of the samples,the detection rate was 4.3% ,and the content was between 0.11 mg/kg and 0.37 mg/kg.In the migration experiments,PAEs migration was detected in 1 batch of PA/PE transparent vacuum bag(1)(microwave heating of greasy food on the surface before consumption)and 1 batch of PP tray(microwave heating of greasy food on the surface before consumption and heating before consumption).Using the filter analysis function of the Laser Infrared Imaging System,the micro plastics with 2,1 and 47 micro plastics dots(match＞0.8)were detected in a PET/PA/AL/CPP composite vacuum bag and a PA/CPP transparent vacuum bag(2)and those disposable paper cups,respectively.The PAEs were detected in the plastics water pipes and the containers used in the production process,and the content were as high as 21.90-3 152.00 mg/kg.The risk of plasticizer pollution from food plastics products in Shanghai was low in 2023,and the risk of migration from the microwave and the heating in water bath was low.However,disposable paper cups had a certain risk of introducing micro plastics.The plastic screen pans,water pipes and other materials in the production process were detected high PAEs.In the future,the food plastic products manufacturers should control PAEs pollution sources in the all aspects of production
plastics products for foodphthalic acid esters(PAEs)migration riskmicro plastics
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