EVALUATION OF POLYETHYLENE TEREPHTHALATE CYCLIC TRIMER MIGRATION FROM MICROWAVE FOOD-PACKAGING USING TEMPERATURE TIME PROFILES

被引：30

作者：

BEGLEY, TH

HOLLIFIELD, HC

机构：

[1] Food and Drug Administration, Division of Food Chemistry and Technology, Washington, DC

来源：

FOOD ADDITIVES AND CONTAMINANTS | 1990年 / 7卷 / 03期

关键词：

Diffusion; Microwave packaging; Migration; Polyethylene terephthalate;

D O I：

10.1080/02652039009373898

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The polymer polyethylene terephthalate (PET) is widely used for packaging food that will be heated or cooked in the PET container. A procedure was developed to predict the potential of PET to migrate from the container into the food. Migration experiments using crystallized polyethylene terephthalate (CPET) and corn oil were performed at 115, 146 and 176º C. From these experiments diffusion coefficients were calculated for the cyclic trimer in PET. By using an Arrhenius plot to obtain the diffusion coefficient and a temperature versus time plot of a microwave susceptor-heated CPET tray, it was possible to predict migration of the cyclic trimer into corn oil under microwave conditions. Predicted values were in good agreement with measured results. © 1990 Taylor & Francis Ltd.

引用

页码：339 / 346

页数：8

共 13 条

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