Lambré Claude, Barat Baviera José Manuel, Bolognesi Claudia, Chesson Andrew, Cocconcelli Pier Sandro, Crebelli Riccardo, Gott David Michael, Grob Konrad, Mengelers Marcel, Mortensen Alicja, Rivière Gilles, Steffensen Inger-Lise, Tlustos Christina, Van Loveren Henk, Vernis Laurence, Zorn Holger, Dudler Vincent, Milana Maria Rosaria, Papaspyrides Constantine, Tavares Poças Maria de Fátima, Lioupis Alexandros, Lampi Evgenia
EFSA J. 2022 May 4;20(5):e07280. doi: 10.2903/j.efsa.2022.7280. eCollection 2022 May.
The EFSA Panel on Food Contact Materials, Enzymes and Processing Aids (CEP) assessed the safety of the recycling process PET Verpackungen Deutschland (EU register number RECYC202), which uses the EREMA basic and Polymetrix SSP leaN technology. The input is hot caustic washed and dried poly(ethylene terephthalate) (PET) flakes mainly originating from collected post-consumer PET containers, including no more than 5% PET from non-food consumer applications. The flakes are heated in a continuous reactor under vacuum before being extruded and pelletised. The crystallised pellets are then preheated and submitted to solid-state polycondensation (SSP) in a continuous reactor under high temperature and gas flow. Having examined the challenge tests provided, the Panel concluded that the continuous reactor (step 2) and the SSP reactor (step 4) are critical in determining the decontamination efficiency of the process. The operating parameters to control the performance are temperature, pressure and residence time for step 2 and temperature, residence time and velocity of inert gas for step 4. It was demonstrated that this 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 is not of safety concern, when used at up to 100% for the manufacture of materials and articles for contact with all types of foodstuffs, including drinking water, for long-term storage at room temperature, with or without hotfill. The final articles made of this recycled PET are not intended to be used in microwave and conventional ovens and such uses are not covered by this evaluation.
欧洲食品安全局食品接触材料、酶和加工助剂小组（CEP）评估了PET Verpackungen Deutschland（欧盟注册号RECYC202）回收工艺的安全性，该工艺采用了埃瑞玛基础技术和Polymetrix SSP leaN技术。输入的是经过热碱洗和干燥的聚对苯二甲酸乙二酯（PET）薄片，主要来源于收集的消费后PET容器，其中非食品消费应用的PET含量不超过5%。这些薄片在连续反应器中于真空下加热，然后挤出并造粒。结晶颗粒随后被预热，并在连续反应器中于高温和气流下进行固态缩聚（SSP）。在审查了所提供的挑战性测试后，小组得出结论，连续反应器（步骤2）和SSP反应器（步骤4）对于确定该工艺的去污效率至关重要。控制性能的操作参数对于步骤2是温度、压力和停留时间，对于步骤4是温度、停留时间和惰性气体流速。结果表明，这种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，小组得出结论，当以高达100%的比例用于制造与包括饮用水在内的所有类型食品接触的材料和制品，用于在室温下长期储存（有无热灌装）时，从该工艺获得的再生PET不存在安全问题。由这种再生PET制成的最终制品不打算用于微波炉和传统烤箱，本评估不涵盖此类用途。
