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当前位置: 首页 » 食品资讯 » 外讯导读 » 欧盟评估大肠杆菌CGMCC 22721生产的L-缬氨酸作为所有动物饲料添加剂的安...

欧盟评估大肠杆菌CGMCC 22721生产的L-缬氨酸作为所有动物饲料添加剂的安全性和有效性

放大字体  缩小字体 时间:2024-10-10 14:40 来源:食品伙伴网 作者: 泽夕   
核心提示:2024年10月9日,据欧盟食品安全局(EFSA)消息,应欧盟委员会要求,欧盟动物饲料添加剂和产品(FEEDAP)研究小组就大肠杆菌CGMCC 22721发酵生产的L-缬氨酸(L‐valine)作为所有动物饲料添加剂的安全性和有效性发表科学意见。
   食品伙伴网讯  2024年10月9日,据欧盟食品安全局EFSA)消息,应欧盟委员会要求,欧盟动物饲料添加剂和产品(FEEDAP)研究小组就大肠杆菌CGMCC 22721发酵生产的L-缬氨酸(L‐valine)作为所有动物饲料添加剂的安全性和有效性发表科学意见。
  
  经过评估,专家小组认为该添加剂对目标物种、消费者和环境是安全的。由于缺乏数据,研究小组无法就该添加剂对皮肤或眼睛产生刺激的可能性得出结论。评估中的添加剂被认为是非反刍动物物种氨基酸L-缬氨酸的有效来源。为了使补充的L-缬氨酸对反刍动物和非反刍动物同样有效,需要防止其在瘤胃中降解。部分原文报道如下:
  
  Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of l-valine produced by fermentation with a genetically modified strain of Escherichia coli (CGMCC 22721) as a nutritional additive for all animal species. The production strain and its DNA were not detected in the final additive. Therefore, the final product does not give raise to any safety concern regarding the genetic modification of the production strain. The EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) concludes that l-valine produced using E. coli CGMCC 22721 is safe for the target species when supplemented in appropriate amounts to the diet according to the nutritional needs of the target species. The FEEDAP Panel has concerns on the use of amino acids in water for drinking for hygienic reasons, and due to the risk of imbalances when administered simultaneously via feed. The use of l-valine produced using E. coli CGMCC 22721 in animal nutrition is considered safe for the consumers and for the environment. The FEEDAP Panel cannot conclude on the potential of l-valine produced using E. coli CGMCC 22721 to irritant to the skin or eyes, a dermal or respiratory sensitiser due to the lack of data. The endotoxin activity of the additive does not represent a hazard for users handling the additive when exposed by inhalation. The additive l-valine produced by fermentation using E. coli CGMCC 22721 is regarded as an efficacious source of the essential amino acid l-valine for non-ruminant nutrition. For the supplemental l-valine to be as efficacious in ruminants as in non-ruminant species, it requires protection against degradation in the rumen.
  
  本文由食品伙伴网食品资讯中心编辑,有任何疑问,请联系news@www.sqrdapp.com。
日期:2024-10-10
 
 
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