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    歐盟評估轉(zhuǎn)基因里氏木霉菌株DP-Nzk98生產(chǎn)的磷脂酶A1的安全性
    日期:2025-05-13  來源:食品伙伴網(wǎng)
       食品伙伴網(wǎng)訊  2025年5月12日,歐盟食品安全局就一種食品酶磷脂酶A1(phospholipase A1)的安全性評價發(fā)布意見。
     
      據(jù)了解,這種食品酶是由轉(zhuǎn)基因里氏木霉菌株DP-Nzk98生產(chǎn)的,旨在用于谷物和其他谷物的加工,以生產(chǎn)焙烤產(chǎn)品。
     
      經(jīng)過評估,專家小組認為,在預(yù)期的使用條件下,不能排除通過飲食接觸引起過敏反應(yīng)的風(fēng)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(jié)論,該食品酶在預(yù)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 phospholipase A1 (phosphatidylcholine 1-acylhydrolase; EC 3.1.1.32) is produced with the genetically modified Trichoderma reesei strain DP-Nzk98 by Genencor International B.V. The genetic modifications do not give rise to safety concerns. The food enzyme is free from viable cells of the production organism and its DNA. The food enzyme is intended to be used in the processing of cereals and other grains for the production of baked products. Dietary exposure was estimated to be up to 0.972 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 1000 mg TOS/kg bw per day, the highest dose tested, which when compared with the estimated dietary exposure, results in a margin of exposure of at least 1029. A search for the homology of the amino acid sequence of the phospholipase A1 to known allergens was made and no match was found. The Panel considered that a risk of allergic reactions upon dietary exposure to the food enzyme cannot be excluded, but that 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(wǎng)食品資訊中心編輯,供網(wǎng)友參考,有任何疑問,請聯(lián)系news@foodmate.net。
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