据了解，这种食品酶是由非转基因米曲霉菌株NZYM-EX生产的，旨在用于八种食品制造过程：生产调味制剂、改良乳蛋白的乳制品加工；加工植物和真菌衍生产品以生产蛋白水解物、酱油；加工肉类和鱼类产品以生产蛋白质水解产物；加工谷物和其他谷物以生产焙烤产品、酿造产品；酵母和酵母产品加工。

 

　　经过评估，专家小组认为，在预期的使用条件下，不能排除饮食暴露引起过敏反应的风险，但这种可能性被认为很低。根据所提供的数据，评估小组得出结论，这种食品酶在预期使用条件下不会引起安全问题。部分原文报道如下：

 

　　The food enzyme leucyl aminopeptidase (EC 3.4.11.1) is produced with the non-genetically modified microorganism Aspergillus oryzae strain NZYM-EX by Novozymes A/S. The food enzyme is free from viable cells of the production organism. It is intended to be used in eight food manufacturing processes: processing of dairy products for the production of (1) flavouring preparations, (2) modified milk proteins; processing of plant- and fungal-derived products for the production of (3) protein hydrolysates, (4) soy sauce; processing of meat and fish products for the production of (5) protein hydrolysates; processing of cereals and other grains for the production of (6) baked products, (7) brewed products; (8) processing of yeast and yeast products. Dietary exposure to the food enzyme total organic solids (TOS) was estimated to be up to 0.577 mg TOS/kg body weight (bw) per day in European populations. Genotoxicity tests did not indicate a safety concern. The systemic toxicity was assessed by means of a repeated dose 90-day oral toxicity study in rats. The Panel identified a no observed adverse effect level of 440 mg TOS/kg bw per day, the highest dose tested, which, when compared with the estimated dietary exposure, resulted in a margin of exposure of at least 763. A search for similarity of the amino acid sequence of the food enzyme to known allergens was made and no match was found. The Panel considered that the risk of allergic reactions by dietary exposure cannot be excluded, but the likelihood is low. based on the data provided, the Panel concluded that this food enzyme does not give rise to safety concerns under the intended conditions of use.

 

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