欧盟评估非转基因解淀粉芽孢杆菌菌株AE-GT生产的谷氨酰胺酶的安全性

 　　  2024年2月23日，欧盟食品安全局就一种食品酶谷氨酰胺酶（glutaminase）的安全性评价发布意见。 
　　据了解，这种食品酶是由非转基因解淀粉芽孢杆菌菌株AE-GT生产的，旨在用于5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，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 glutaminase (l-glutamine amidohydrolase; EC 3.5.1.2) is produced with the non-genetically modified Bacillus amyloliquefaciens strain AE-GT by Amano Enzyme Inc. The production strain met the requirements for the qualified presumption of safety (QPS) approach. The food enzyme is intended to be used in five food manufacturing processes. Dietary exposure to the food enzyme-total organic solids (TOS) was estimated to be up to 0.462 mg TOS/kg body weight per day in European populations. Given the QPS status of the production strain and the absence of concerns resulting from the food enzyme's manufacturing process, toxicity tests were considered unnecessary by the Panel. 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 a risk of allergic reactions upon 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.