Migration of the Plasticizer Acetyltributyl Citrate from Plastic Film into Foods during Microwave Cooking and Other Domestic Use

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Abstract
Migration of acetyltributyl citrate (ATBC) into a diverse range of foods during domestic use of plasticized PVDC/PVC co-polymer film has been determined using a stable isotope dilution GC/MS approach. Aspects of home use reported in this study include lining and covering both containers and food during microwave cooking, covering food during microwave re-heating and use of the film for wrapping food during storage. Both indirect and intimate contact between film and fatty or aqueous-type foods for differing times and exposure temperatures were tested. The results showed migration levels ranging from 0.4 mg/kg where there was minimal contact during microwave cooking of a soup, to levels of 79.8 mg/kg for use of the film in intimate contact as a liner to a container during the microwave cooking of biscuits.