2024年4月17日，據歐盟食品安全局（EFSA）消息，應歐盟委員會要求，歐盟動物飼料添加劑和產品（FEEDAP）研究小組就粘著劍菌CGMCC 21299生產的維生素B12（氰鈷胺素）作為所有動物飼料添加劑的安全性和有效性發表科學意見。
經過評估，專家小組認為該添加劑對所有動物物種、消費者和環境是安全的。當通過飼料施用時，被評估的添加劑在滿足動物的營養需求方面是有效的。部分原文報道如下：
Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of vitamin B12 (cyanocobalamin) produced by fermentation with a non-genetically modified strain of Ensifer adhaerens (CGMCC 21299), when used as a nutritional additive for all animal species. No viable cells or DNA of the production strain were detected in the additive. Therefore, cyanocobalamin produced by fermentation with E. adhaerens CGMCC 21299 does not raise safety concerns as regards to the production strain. The Panel on Additives and Products or Substances used in Animal Feed concluded that cyanocobalamin produced by fermentation with E. adhaerens CGMCC 21299 is considered safe for all animal species, for the consumers and the environment. Due to the presence of nickel, the additive is considered a skin and respiratory sensitiser. Inhalation and dermal exposure are considered a risk. Due to the lack of data, the Panel could not conclude on the potential of the additive to be an eye irritant. Cyanocobalamin produced by fermentation with E. adhaerens CGMCC 21299 is effective in meeting animal's nutritional requirements when administered via feed.
經過評估，專家小組認為該添加劑對所有動物物種、消費者和環境是安全的。當通過飼料施用時，被評估的添加劑在滿足動物的營養需求方面是有效的。部分原文報道如下：
Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of vitamin B12 (cyanocobalamin) produced by fermentation with a non-genetically modified strain of Ensifer adhaerens (CGMCC 21299), when used as a nutritional additive for all animal species. No viable cells or DNA of the production strain were detected in the additive. Therefore, cyanocobalamin produced by fermentation with E. adhaerens CGMCC 21299 does not raise safety concerns as regards to the production strain. The Panel on Additives and Products or Substances used in Animal Feed concluded that cyanocobalamin produced by fermentation with E. adhaerens CGMCC 21299 is considered safe for all animal species, for the consumers and the environment. Due to the presence of nickel, the additive is considered a skin and respiratory sensitiser. Inhalation and dermal exposure are considered a risk. Due to the lack of data, the Panel could not conclude on the potential of the additive to be an eye irritant. Cyanocobalamin produced by fermentation with E. adhaerens CGMCC 21299 is effective in meeting animal's nutritional requirements when administered via feed.
