UCD School of Agriculture and Food Science, University College Dublin , Belfield, Dublin 4, Ireland.
J Agric Food Chem. 2013 Dec 11;61(49):12155-63. doi: 10.1021/jf402620b. Epub 2013 Nov 22.
Overall migration (OM) tests were conducted on an antioxidant active packaging prepared by coating plasma pretreated and untreated polyethylene terepthalate (PET) trays with a citrus extract. The release of antioxidant compounds into food simulants was measured to permit their subtraction from OM values in line with active packaging legislation. The results demonstrated the compliance of the packaging with the limit for OM for plastic material in contact with food. The validity of the procedure for OM in aqueous food simulants was questioned, with the loss of volatile compounds during evaporation of the simulant resulting in an underestimation of total compounds released. The study showed a total release of 75% of the citrus extract coating into water and 25% into oil, which decreased to 45 and 12.5%, respectively, following plasma pretreatment of the trays.
对用等离子体预处理和未预处理的聚对苯二甲酸乙二醇酯（PET）托盘涂覆柑橘提取物制备的抗氧化活性包装进行了整体迁移（OM）测试。测量了抗氧化化合物向食品模拟物中的释放量，以便根据活性包装法规从 OM 值中减去它们。结果表明，该包装符合与食品接触的塑料材料 OM 限值。质疑了在水性食品模拟物中进行 OM 的程序的有效性，由于模拟物蒸发过程中挥发性化合物的损失，导致释放的总化合物被低估。该研究显示，柑橘提取物涂层在水中的总释放量为 75%，在油中的总释放量为 25%，而托盘经等离子体预处理后，分别降至 45%和 12.5%。
