欧盟评估非转基因解淀粉芽孢杆菌菌株NZYM-NB生产的枯草杆菌金属蛋白酶的安全性

 

　　据了解，这种食品酶是由非转基因解淀粉芽孢杆菌菌株NZYM-NB生产的，旨在用于11种食品生产过程。

 

　　经过评估，专家小组认为，在预期的使用条件下（蒸馏酒精生产除外），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 bacillolysin (EC 3.4.24.28) is produced with the non-genetically modified Bacillus amyloliquefaciens strain NZYM-NB by Novozymes A/S. The production strain meets the requirements for qualified presumption of safety (QPS) approach to safety assessment. The food enzyme is intended to be used in eleven food manufacturing processes. Since residual amounts of total organic solids (TOS) are removed during two processes, dietary exposure was estimated only for the remaining nine food manufacturing processes. Exposure was estimated to be up to 1.327 mg TOS/kg body weight per day in European populations. As the production strain qualifies for the QPS approach and no issue of concern arising from the production process of the food enzyme was identified, the Panel considered that no toxicological studies other than the assessment of allergenicity were necessary. A search for the 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 (except for distilled alcohol production), 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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