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当前位置: 首页 » 食品资讯 » 外讯导读 » 欧盟评估一种内切-1,4-β-木聚糖酶作为家禽饲料添加剂的安全性和有效性

欧盟评估一种内切-1,4-β-木聚糖酶作为家禽饲料添加剂的安全性和有效性

放大字体  缩小字体 时间:2022-07-22 11:03 来源:食品伙伴网 作者: 泽夕   
核心提示:2022年7月21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)研究小组就一种内切-1,4-β-木聚糖酶(endo‐1,4‐β‐xylanase )作为家禽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  2022年7月21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)研究小组就一种内切-1,4-β-木聚糖酶(endo‐1,4‐β‐xylanase )作为家禽饲料添加剂的安全性和有效性发表科学意见。
 
  据了解,该添加剂是由Komagataella phaffii ATCC PTA-127053生产的。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 endo-1,4-β-xylanase produced by Komagataella phaffii ATCC PTA-127053 (Xygest HT) as a zootechnical feed additive for poultry. The production strain is genetically modified. No viable cells nor recombinant DNA of the production strain were detected in the final product. Therefore, the Panel concluded that the additive does not pose any safety concern regarding the production strain. The FEEDAP Panel concluded that Xygest HT is considered safe for chickens for fattening at 30,000 U/kg and in laying hens at 45,000 U/kg, with a wide margin of safety. These conclusions can be extended to chickens reared for laying/breeding and extrapolated to all poultry species for fattening and reared for laying/breeding and to ornamental birds. The conclusions on laying hens are extrapolated to all laying poultry species. The use of Xygest HT in animal nutrition is of no concern for consumer safety and this feed additive is considered safe for the environment. The Panel also concluded that Xygest HT is not irritant to the eyes and skin but should be considered a dermal and a respiratory sensitiser. The Panel concluded that the additive Xygest HT has a potential to be efficacious for laying hens under the proposed conditions of use and this conclusion can also be extrapolated to all laying poultry species. The Panel could not conclude on the efficacy of the product for chickens for fattening due to insufficient data.
 
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日期:2022-07-22
 
 
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