欧盟评估银杏叶提取物作为猫和狗饲料添加剂的安全性和有效性

 

　　鉴于美国国家毒理学计划的研究结果表明，银杏叶提取物具有潜在的致癌性，专家小组得出结论认为，该添加剂对猫和狗不安全。在没有证据表明提取物在动物饲料中起着调味作用或对适口性有影响的情况下，专家小组无法就添加剂的功效得出结论。部分原文报道如下：

 

　　Following a request from the European Commission, the EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety and efficacy of a dried extract prepared from the leaves of Ginkgo biloba L. (G. biloba dry extract) when used as a sensory additive in feed for cats and dogs. G. biloba dry extract is specified to contain at least 24% flavonol glycosides, at least 6% terpene lactones and less than 5 ppm ginkgolic acids. Since uncertainty remains concerning the nature of up to 75% of the extract, the additive is not sufficiently characterised to allow an assessment based on the individual components. In view of the indication of potential carcinogenicity from the results of studies by the National Toxicology Program of the USA, obtained with a G. biloba extract comparable with the additive under assessment, the FEEDAP Panel concludes that the additive cannot be considered safe for cats and dogs. In the absence of data, no conclusions can be drawn on the safety for the user. In the absence of evidence that the extract acts as a flavour in animal feed or has an effect on palatability, the FEEDAP Panel was unable to conclude on the efficacy of the additive.

 

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