2020年12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L-賴氨酸鹽酸鹽（L‐lysine monohydrochloride）和L-賴氨酸濃縮液體（co
ncentrated liquid L‐lysine (ba
se)）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。
據條例，這種L-賴氨酸鹽酸鹽和L-賴氨酸濃縮液體由穀氨酸棒桿菌KCTC 12307BP發酵產生。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。L-賴氨酸鹽酸鹽和L-賴氨酸濃縮液體被認為是非反芻動物物種必需胺基酸L-賴氨酸的有效來源。為了使補充的賴氨酸對反芻動物和非反芻動物同樣有效，需要防止其在瘤胃中降解。部分原文報導如下：
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 the safety for the target animals, consumer, user and the environment and on the efficacy of a concentrated liquid l‐lysine (base, minimum 50%) and a l‐lysine monohydrochloride (HCl, minimum 99%) produced by fermentation with a genetically modified strain of Corynebacterium glutamicum (KCTC 12307BP). Both forms of l‐lysine are intended to be used in feed for all animal species and categories. Neither the production strain nor its recombinant DNA were detected in the final products. The additives do not pose any safety concern associated with the genetic modification of the production strain. Concentrated liquid l‐lysine (base) and l‐lysine HCl produced by the strain C. glutamicumKCTC 12307BP do not represent a risk for the target species, for the consumer, for the user and for the environment. l‐Lysine HCl and concentrated liquid l‐lysine (base) are considered to be efficacious sources of the essential amino acid l‐lysine for non‐ruminant animal species. For the supplemental l‐lysine to be as efficacious in ruminants as in non‐ruminant species, it would require protection against degradation in the rumen.
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