我国市售饮料与包装接触面积/体积比调查

Investigation on food contact surface area/volume ratios of food contact material in beverage in China

目的了解我国饮料包装材料使用情况,研究构建饮料不同类型接触材料的接触面积/体积比(S/V)参数。方法采集市场销售的不同包装、不同类型的饮料,采用直接测量法或3D面积测量仪计算不同类型饮料的接触面积,结合不同类型饮料的规格,计算S/V。结果共采集214种不同类型、不同食品接触材料的饮料。72.0%(154/214)的饮料主体接触材料为单一材质,28.0%(60/214)的饮料接触材料为纸(涂层)和马口铁(涂层)等复合材质。不同类型饮料的接触材料S/V的平均值为11.29 dm^2/kg,范围为4.26~64.32 dm^2/kg。85.0%(182/214)的饮料接触材料的S/V≥6 dm^2/kg,73.4%(157/214)介于≥6~12 dm^2/kg之间。结论我国市售大部分饮料的平均S/V大于欧盟评估时采用的6 dm^2/kg,利用调查研究获得的参数将会降低食品接触材料风险评估中的不确定性。

Objective To establish the database of the ratio of food contact surface area/volume ratios(S/V) of different types of food contact material in beverage. Methods Different kinds of beverage consumed by Chinese population was collected, food contact surface area was calculated by direct measurement or 3 D area measuring instrument. The ratio of S/V was obtained by combining contact area with food packaging volume. Results A total of 214 kinds of beverage were collected in this study. 72.0%(154/214)of food contact material(FCM) in contact with beverage was made of single material, the remaining 28.0%(60/214)was made of composite materials, mainly coated paper and coated tinplate. The mean S/V of FCM in contact with beverage was 11.29 dm^2/kg, ranging from 4.26 to 64.32 dm^2/kg. Further analysis found that 85.0%(182/214) of the S/V was greater than 6 dm^2/kg, 73.4%(157/214) was between ≥6-12 dm^2/kg. Conclusion The majority of S/V in contact with beverage was higher than 6 dm^2/kg, a parameter used by European Food Safety Authority. Food contact S/V constructed by this investigation could decrease uncertainty in food contact material risk assessment.