Silano Vittorio, Bolognesi Claudia, Castle Laurence, Chipman Kevin, Cravedi Jean-Pierre, Fowler Paul, Franz Roland, Grob Konrad, Gürtler Rainer, Husøy Trine, Kärenlampi Sirpa, Mennes Wim, Milana Maria Rosaria, Pfaff Karla, Riviere Gilles, Srinivasan Jannavi, Tavares Poças Maria de Fátima, Tlustos Christina, Wölfle Detlef, Zorn Holger, Chesson Andrew, Glandorf Boet, Herman Lieve, Jany Klaus-Dieter, Marcon Francesca, Penninks André, Smith Andrew, van Loveren Henk, Želježic Davor, Aguilera Jaime, Andryszkiewicz Magdalena, Kovalkovicová Natália, Rossi Annamaria, Engel Karl-Heinz
EFSA J. 2018 Jul 6;16(7):e05317. doi: 10.2903/j.efsa.2018.5317. eCollection 2018 Jul.
The food enzyme is an α-amylase (4-α-d-glucan glucanohydrolase; EC 3.2.1.1) produced with a genetically modified strain NZYM-AN by Novozymes A/S. The genetic modifications do not give rise to safety concerns. The food enzyme does not contain the production organism or recombinant DNA; therefore, there is no safety concern for the environment. The α-amylase is intended to be used in starch processing for the production of glucose syrups and distilled alcohol production. Residual amounts of total organic solids (TOS) are removed by distillation and by the purification steps applied during the production of glucose syrups (by > 99%). Consequently, dietary exposure was not calculated. Genotoxicity tests with the food enzyme did not raise a safety concern. The amino acid sequence of the food enzyme did not match to those of known allergens. The Panel considered that under the intended condition of use, the risk of allergic sensitisation and elicitation reactions upon dietary exposure to this food enzyme cannot be excluded, but the likelihood is considered low. Based on the microbial source, the genetic modifications, the manufacturing process, the compositional and biochemical data, the removal of TOS during the intended food production processes and the findings in the genotoxicity studies, the Panel concluded that this food enzyme does not give rise to safety concerns under the intended conditions of use.
该食品酶是一种α-淀粉酶(4-α-D-葡聚糖葡聚糖水解酶;EC 3.2.1.1),由诺维信公司(Novozymes A/S)的转基因菌株NZYM-AN生产。基因改造不会引发安全问题。该食品酶不含生产生物体或重组DNA;因此,不存在环境安全问题。α-淀粉酶旨在用于淀粉加工,以生产葡萄糖糖浆和蒸馏酒精。通过蒸馏以及葡萄糖糖浆生产过程中应用的纯化步骤(去除率>99%)可去除总有机固体(TOS)的残留量。因此,未计算膳食暴露量。对该食品酶进行的遗传毒性试验未引发安全问题。该食品酶的氨基酸序列与已知过敏原的序列不匹配。专家小组认为,在预期使用条件下,不能排除膳食接触该食品酶后发生过敏致敏和激发反应的风险,但可能性较低。基于微生物来源、基因改造、制造工艺、成分和生化数据、预期食品生产过程中TOS的去除情况以及遗传毒性研究结果,专家小组得出结论,在预期使用条件下,该食品酶不会引发安全问题。