2023年4月20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）研究小组就粘着剑菌CGMCC 19596生产的维生素B12（氰钴胺素）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，专家小组认为使用粘着剑菌CGMCC 19596生产的维生素B12对所有动物物种、消费者和环境是安全的。当通过饲料施用时，被评估的添加剂在满足动物的营养需求方面是有效的。部分原文报道如下：
The vitamin B12 (in the form of cyanocobalamin) under assessment is produced by fermentation with Ensifer adhaerens CGMCC 19596 and it is intended to be used as a nutritional additive for all animal species. Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of cyanocobalamin, produced by fermentation with E. adhaerens CGMCC 19596. Cyanocobalamin produced by other strains of E. adhaerens is already authorised for use in animal species. ■■■■■ However no viable cells nor DNA of the production strain were detected in the additive. Therefore, cyanocobalamin produced by E. adhaerens CGMCC 19596 does not raise safety concerns as regards to the production strain. The FEEDAP Panel concluded that cyanocobalamin produced by fermentation with E. adhaerens CGMCC 19596 is considered safe for all animal species. The use of cyanocobalamin in animal nutrition is of no concern for consumer safety. Cyanocobalamin is non-irritant to skin and non-irritant to eyes. No conclusions could be drawn on the potential of the additive to be a skin sensitiser. The potential endotoxin activity of the additive is unlikely to represent a hazard for users. The use of the additive under assessment in animal nutrition is considered safe for the environment. Cyanocobalamin produced by E. adhaerens CGMCC 19596 is effective in meeting animal's nutritional requirements when administered via feed.
