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    當(dāng)前位置: 首頁 » 食品資訊 » 外訊導(dǎo)讀 » 歐盟評(píng)估轉(zhuǎn)基因枯草芽孢桿菌菌株XAN生產(chǎn)的內(nèi)切-1,4-β-木聚糖酶的安全性

    歐盟評(píng)估轉(zhuǎn)基因枯草芽孢桿菌菌株XAN生產(chǎn)的內(nèi)切-1,4-β-木聚糖酶的安全性

    放大字體  縮小字體 時(shí)間:2023-07-12 16:13 來源:食品伙伴網(wǎng) 作者: 澤夕   
    核心提示:2023年7月10日,歐盟食品安全局就一種食品酶內(nèi)切-1,4-β-木聚糖酶(endo-1,4-β-xylanase)的安全性評(píng)價(jià)發(fā)布意見。
       食品伙伴網(wǎng)訊  2023年7月10日,歐盟食品安全局就一種食品酶內(nèi)切-1,4-β-木聚糖酶(endo-1,4-β-xylanase)的安全性評(píng)價(jià)發(fā)布意見。
     
      據(jù)了解,這種食品酶是由轉(zhuǎn)基因枯草芽孢桿菌菌株XAN生產(chǎn)的,旨在用于烘焙過程和基于谷物的過程。
     
      經(jīng)過評(píng)估,專家小組認(rèn)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(xiǎn),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(huì)引起安全問題。部分原文報(bào)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 microorganism Bacillus subtilis strain XAN by DSM Food Specialties 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 production strain of the food enzyme contains antimicrobial resistance genes. However, based on the absence of viable cells and DNA from the production organism in the food enzyme, this is not considered to be a risk. The food enzyme is intended to be used in baking processes and cereal-based processes. Dietary exposure to the food enzyme total organic solids (TOS) was estimated to be up to 0.02 mg TOS/kg body weight (bw) per day in European populations. As no other concerns arising from the microbial source and its subsequent genetic modification or from the manufacturing process have been identified, the Panel considered that toxicological tests are not needed for the assessment of this food enzyme. A search for similarity of the amino acid sequence of the food enzyme to known allergens was made and no match was 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 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。
    日期:2023-07-12
     
     
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