2021年7月30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）研究小组就野油菜黄单胞杆菌（Xanthomonas campestris strains）菌株生产的黄原胶（xanthan gum）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，在缺乏关于评估中的添加剂的充分信息的情况下，专家小组无法就黄原胶对目标物种、消费者、使用者和环境的安全性得出结论。在建议的使用条件下，黄原胶被认为是所有动物品种饲料中有效的稳定剂和增稠剂。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 xanthan gum as a feed additive for all animal species. Xanthan gum is manufactured using different production strains belonging to the X. campestris species. The identity of the strains producing xanthan gum was not unambiguously established, data on antimicrobial susceptibility were incomplete, and it was not possible to exclude the presence in the additive of viable cells/DNA of the production strains. Consequently, no conclusions could be drawn on the safety of the X. campestris strains ■■■■■. Considering the above and in the absence of adequate information on the additive under assessment, the FEEDAP Panel cannot conclude on the safety of xanthan gum produced by the X. campestris strains ■■■■■ for the target species, the consumer, the user and the environment. Xanthan gum is considered as an efficacious stabiliser and thickener in feedingstuffs for all animal species at the proposed conditions of use.
