Jickells S M, Castle L
Ministry of Agriculture, Fisheries and Food, Food Science Laboratory, Colney, Norwich, UK.
Food Addit Contam. 1993 Nov-Dec;10(6):647-53. doi: 10.1080/02652039309374191.
A testing scheme is described whereby the susceptor is heated in an enclosed system and potential volatile migrants detected by GC-FID or GC-MS. This compositional information is then combined with knowledge on the relationship between volatility and transfer to foods to predict migration levels. The scheme can be simplified to a threshold of regulation approach by addition of internal standards at suitable concentrations. This approach could be of value in screening new susceptor compositions for potential migrants, followed, as required, by more exhaustive testing using foods or food simulants. In support of this approach, 15 model substances with a boiling range of 77-440 degrees C were incorporated into susceptors via the vapour phase or by formulation into the adhesive. Migration to microwaved foods was measured to provide the required information on the approximate relationship between the boiling point of a potential migrant and its migration level. The impregnated susceptors were also used to measure migration of the model substances to the test simulants Tenax and a semi-solid simulant of olive oil and water absorbed on an inert support. Migration to both simulants was much higher than to foods, indicating that for volatiles analysis at least, both simulants are suitable for screening purposes and err on the side of safety.
描述了一种测试方案，通过该方案，在封闭系统中加热感受器，并通过气相色谱 - 火焰离子化检测器（GC - FID）或气相色谱 - 质谱联用仪（GC - MS）检测潜在的挥发性迁移物。然后将该成分信息与关于挥发性和向食品转移之间关系的知识相结合，以预测迁移水平。通过添加适当浓度的内标，该方案可以简化为一种监管阈值方法。这种方法在筛选新的感受器成分中的潜在迁移物时可能具有价值，然后根据需要，使用食品或食品模拟物进行更详尽的测试。为支持这种方法，将15种沸点范围为77 - 440摄氏度的模型物质通过气相或配制成粘合剂加入到感受器中。测量了向微波食品中的迁移，以提供关于潜在迁移物沸点与其迁移水平之间近似关系的所需信息。浸渍过的感受器还用于测量模型物质向测试模拟物Tenax以及吸附在惰性载体上的橄榄油和水的半固体模拟物中的迁移。向两种模拟物中的迁移远高于向食品中的迁移，这表明至少对于挥发性分析而言，两种模拟物都适用于筛选目的，并且偏向安全。
