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歐盟評(píng)估轉(zhuǎn)基因里氏木霉菌株AR-577生產(chǎn)的果聚糖β-果糖苷酶的安全性
日期:2024-12-18  來源:食品伙伴網(wǎng)
   食品伙伴網(wǎng)訊  2024年12月17日,歐盟食品安全局就一種食品酶果聚糖β-果糖苷酶(fructan β-fructosidase)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)基因里氏木霉菌株AR-577生產(chǎn)的,旨在用于谷物加工,以生產(chǎn)焙烤產(chǎn)品和非焙烤的谷物基產(chǎn)品。
  
  經(jīng)過評(píng)估,專家小組得出結(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 fructan β-fructosidase (β-d-fructan fructohydrolase; EC 3.2.1.80) is produced with the genetically modified Trichoderma reesei strain AR-577 by AB Enzymes GmbH. 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 and cereal-based products other than baked. Dietary exposure was estimated to be up to 0.181 mg total organic solids (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 5495. A search for homology of the amino acid sequence of the food enzyme to known allergens was made and no match was found. A known source of food allergens was used in the food enzyme manufacturing process. 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(wǎng)食品資訊中心編輯,供網(wǎng)友參考,有任何疑問,請(qǐng)聯(lián)系news@foodmate.net。
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