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当前位置: 首页 » 食品资讯 » 外讯导读 » 欧盟评估转基因米曲霉菌株NZYM-PP生产的磷脂酶A1的安全性

欧盟评估转基因米曲霉菌株NZYM-PP生产的磷脂酶A1的安全性

放大字体  缩小字体 时间:2023-02-28 11:03 来源:食品伙伴网 作者: 泽夕   
核心提示:2023年2月26日,欧盟食品安全局就一种食品酶磷脂酶A1(phospholipase A1)的安全性评价发布意见。
   食品伙伴网讯  2023年2月26日,欧盟食品安全局就一种食品酶磷脂酶A1(phospholipase A1)的安全性评价发布意见。
 
  据了解,这种食品酶是由转基因米曲霉菌株NZYM-PP生产的,旨在用于奶酪生产中的牛奶加工。
 
  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,但这种情况发生的可能性很低。该小组得出结论,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 phospholipase A1 (phosphatidylcholine 1-acylhydrolase; EC 3.1.1.32) is produced with the genetically modified Aspergillus oryzae strain NZYM-PP by Novozymes A/S. The genetic modifications do not give rise to safety concerns. The food enzyme was considered free from viable cells of the production organism and its DNA. It is intended to be used in milk processing for cheese production. Dietary exposure to the food enzyme–total organic solids (TOS) was estimated to be up to 0.012 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 a repeated dose 90-day oral toxicity study in rats. The Panel identified a no observed adverse effect level of 575.1 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 47,925. A search for the similarity of the amino acid sequence of the food enzyme to known allergens was made and no matches were found. The Panel considered that, under the intended conditions of use, the risk of allergic reactions by dietary exposure cannot be excluded, but the likelihood for this to occur is low. The Panel concluded that this food enzyme does not give rise to safety concerns under the intended conditions of use.
 
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日期:2023-02-28
 
 
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