我国坚果籽类食品接触材料膳食暴露评估基础参数市场调查

目的建立我国坚果籽类食品接触材料膳食暴露评估基础参数。方法选择接触面积法对坚果籽类食品接触材料进行研究,通过调查食品接触材料的相关数据信息获得接触面积法中食品接触材料与单位质量食品的接触面积参数。结果通过调查分析114份坚果籽类食品,获取相关数据3 648个,我国坚果籽类食品接触材料主要包括铝、聚乙烯、聚对苯二甲酸乙二醇酯、聚丙烯、聚苯乙烯和涂层6种材质,食品接触材料与单位质量或单位体积食品的接触面积(S/V)平均值为21.29 dm~2/kg,中位数为13.40 dm~2/kg,P5为1.11 dm~2/kg,P95为67.46 dm~2/kg。结论基于坚果籽类食品市场调查构建的坚果籽类食品接触材料基础参数可为我国坚果籽类食品接触材料安全性评估工作提供数据支持。

Market investigation of basic parameters for exposure assessment of contact materials for nut-seed food in China

Objective To establish the basic parameters for exposure assessment of contact materials for nut-seed food in China. Methods The contact area method was used to study the contact materials of nut-seed food in this study. Based on the contact area values, ratio of contact areas and unit mass were obtained. Results Through investigation and analysis, 114 kinds of nut-seed food were sampled, and 3 648 related data were obtained. Food contact materials of nut-seed food on the market mainly included aluminum, polyethylene, polyethylene terephthalate, polypropylene, polystyrene and coating. The average contact area per unit mass or volume(S/V)was 21.29 dm²/kg, the median was 13.40 dm²/kg, P5 was 1.11 dm²/kg, and P95 was 67.46 dm²/kg. Conclusion The basic parameters of nut-seed food contact materials could provide data support for the safety assessment in China.