Silano Vittorio, Bolognesi Claudia, Castle Laurence, Chipman Kevin, Cravedi Jean-Pierre, Engel Karl-Heinz, Fowler Paul, Franz Roland, Grob Konrad, Gürtler Rainer, Husøy Trine, Kärenlampi Sirpa, Mennes Wim, Pfaff Karla, Riviere Gilles, Srinivasan Jannavi, Tavares Poças Maria de Fátima, Tlustos Christina, Wölfle Detlef, Zorn Holger, Dudler Vincent, Gontard Nathalie, Lampi Eugenia, Nerin Cristina, Papaspyrides Constantine, Croera Cristina, Milana Maria Rosaria
EFSA J. 2018 Apr 19;16(4):e05227. doi: 10.2903/j.efsa.2018.5227. eCollection 2018 Apr.
This scientific opinion of the EFSA Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids (CEF Panel) deals with the safety evaluation of the recycling process BTB PET direct IV+ (EU register number RECYC0152). The input of the process is hot caustic washed and dried poly(ethylene terephthalate) (PET) flakes originating from collected post-consumer food contact PET containing no more than 5% of PET from non-food consumer applications. In this technology, washed PET flakes are extruded into pellets which are further crystallised. Crystallised pellets are then preheated and fed to the solid-state polycondensation (SSP) reactor. Having examined the challenge test provided, the Panel concluded that extrusion, crystallisation and SSP are the critical steps that determine the decontamination efficiency of the process. The operating parameters that control their performance are well defined and they are temperature, pressure and residence time. Under these conditions, it was demonstrated that the recycling process is able to ensure that the level of migration of potential unknown contaminants into food is below the conservatively modelled migration of 0.1 μg/kg food. Therefore, the Panel concluded that the recycled PET obtained from this process, intended to be used up to 100% for the manufacture of materials and articles for contact with all types of foodstuffs for long-term storage at room temperature, with or without hotfill, is not considered of safety concern. Trays made of this recycled PET are not intended to be used, and should not be used, in microwave and conventional ovens.
欧洲食品安全局食品接触材料、酶、香料和加工助剂专家小组（CEF小组）的这一科学意见涉及回收工艺BTB PET direct IV+（欧盟注册号RECYC0152）的安全性评估。该工艺的输入物是经过热碱洗和干燥的聚对苯二甲酸乙二酯（PET）薄片，这些薄片源自收集的消费后食品接触用PET，其中来自非食品消费应用的PET含量不超过5%。在这项技术中，洗涤后的PET薄片被挤压成颗粒，然后进一步结晶。结晶颗粒随后被预热并送入固态缩聚（SSP）反应器。在审查了所提供的挑战试验后，专家小组得出结论，挤压、结晶和SSP是决定该工艺去污效率的关键步骤。控制其性能的操作参数定义明确，即温度、压力和停留时间。在这些条件下，已证明该回收工艺能够确保潜在未知污染物向食品中的迁移水平低于保守模拟的0.1μg/kg食品的迁移量。因此，专家小组得出结论，通过该工艺获得的再生PET，若打算100%用于制造与所有类型食品接触的材料和制品，用于在室温下长期储存，无论是否热灌装，均不构成安全问题。用这种再生PET制成的托盘不得且不应在微波炉和传统烤箱中使用。
