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    歐盟評估轉基因枯草芽孢桿菌菌株AR-153生產的內切-1,4-β-木聚糖酶的安全性
    日期:2024-12-17  來源:食品伙伴網
       食品伙伴網訊  2024年12月13日,歐盟食品安全局就一種食品酶內切-1,4-β-木聚糖酶(endo-1,4-β-xylanase)的安全性評價發(fā)布意見。
      
      據(jù)了解,這種食品酶是由轉基因枯草芽孢桿菌菌株AR-153生產的,旨在用于4種食品制造過程。
      
      經過評估,專家小組認為,在預期的使用條件下,不能排除通過飲食接觸引起過敏反應的風險,但這種情況發(fā)生的可能性很低。根據(jù)所提供的數(shù)據(jù),小組得出結論,該食品酶在預期的使用條件下不會引起安全問題。部分原文報道如下:
      
      The food enzyme endo-1,4-β-xylanase (4-β-d-xylan xylanohydrolase; EC 3.2.1.8) is produced with the genetically modified Bacillus subtilis strain AR-153 by AB Enzymes GmbH. The genetic modifications do not give rise to safety concerns. The production strain meets the requirements for the qualified presumption of safety (QPS) approach. The food enzyme is free from viable cells of the production organism and its DNA. It is intended to be used in four food manufacturing processes. Since residual amounts of total organic solids (TOS) are removed during one food manufacturing process, dietary exposure was only calculated for the remaining three processes. Exposure was estimated to be up to 0.463 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 manufacturing process, toxicity tests were considered unnecessary by the Panel. A search for homology 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 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.
      
      本文由食品伙伴網食品資訊中心編輯,供網友參考,有任何疑問,請聯(lián)系news@foodmate.net。
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