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信息来源：食品伙伴网
2018年12月18日，欧盟食品安全局（EFSA）发布消息，应欧盟委员会要求，欧盟动物饲料添加剂和产品（FEEDAP）研究小组就维生素B2（核黄素5′-磷酸酯单钠盐（riboflavin 5'-phosphate ester monosodium salt））作为所有动物饮用水添加剂的安全性和有效性发表科学意见。
据了解，此添加剂是由Ashbya gossypii产生的核黄素。由于缺乏足够的信息，专家组不可能对生产菌株的安全性进行评估，也无法得出核黄素5′-磷酸酯单钠盐的目标物种、消费者、使用者和环境的安全性结论。
部分原文报道如下：
Following a request from the European Commission, the Panel on Additives and Products or Substances used in Animal Feed （FEEDAP） was asked to deliver a scientific opinion on vitamin B2 in the form of riboflavin 5′‐phosphate ester monosodium salt as an additive for all animal species for use in water for drinking. The additive under assessment is obtained from a source of riboflavin produced by Ashbya gossypii. No information was provided on the identity and characterisation of the production strain, and on whether or not it is a genetically modified microorganism. Therefore, in the absence of adequate information, it is not possible to perform an assessment of the safety of the production strain. Riboflavin 5′‐phosphate ester monosodium salt 'per se' is considered safe for the target animals, consumers and the environment. In the absence of data regarding the identity and characterisation of the production strain, the FEEDAP Panel cannot conclude on the safety for the target species, consumers, users and the environment of the riboflavin 5′‐phosphate ester monosodium salt under assessment. Similarly, in the absence of data, no conclusion can be reached on the safety of the product for the users. Riboflavin 5′‐phosphate ester monosodium salt is regarded as effective in covering the animal's requirement when administered via water for drinking.