2022年3月3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）研究小组就一种内切-1,4-β-木聚糖酶（endo‐1,4‐β‐xylanase ）作为母猪饲料添加剂的安全性和有效性发表科学意见。
据了解，该添加剂是由桔绿木霉（IMI SD 135）生产的。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 the efficacy of HOSTAZYM? X as a feed additive for sows in order to have benefits in piglets. This additive consists of endo-1,4-β-xylanase produced by a non-genetically modified strain of Trichoderma citroviride. The additive is to be used in sows at 1,500 EPU/kg feed. In a previous opinion, the FEEDAP Panel could not conclude on the efficacy of the additive when added to feed for sows in order to have benefits in piglets. The applicant provided new efficacy data to complete the assessment of the efficacy of the additive. based on the previously assessed data and the newly submitted one, the Panel could not conclude on the efficacy of the additive.
