2024年2月9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）研究小組就一種內切-1,4-β-木聚糖酶（endo-β-1,4-xylanase）作為所有豬科動物飼料添加劑的安全性和有效性。
據了解，該添加劑是由法夫駒形氏酵母（Komagataella phaffii）ATCC PTA-127053生產的。經過評估，專家小組認為在建議的使用條件下該添加劑對目標物種、消費者和環境是安全的。在缺乏足夠數據的情況下，專家小組無法就添加劑的有效性做出結論。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 endo-1,4-β-xylanase produced by Komagataella phaffii ATCC PTA-127053 (Xygest™ HT) as a zootechnical feed additive (functional group: digestibility enhancers) for all Suidae at a recommended minimum level of 90,000 U/kg complete feed for pigs in the growing period and 45,000 U/kg complete feed for sows. The production strain is considered suitable for the qualified presumption of safety (QPS) approach to safety assessment. The FEEDAP Panel concluded that the additive is safe at the minimum recommended use level for all growing Suidae and all sows in the lactating phase. Xygest™ HT was considered safe for the consumers and for the environment when used in feed for all Suidae. The additive was considered not to be irritant to eyes and skin, but was considered as a dermal and respiratory sensitiser. In the absence of sufficient data, the FEEDAP Panel was not in the position to conclude on the efficacy of Xygest™ HT for all Suidae.
據了解，該添加劑是由法夫駒形氏酵母（Komagataella phaffii）ATCC PTA-127053生產的。經過評估，專家小組認為在建議的使用條件下該添加劑對目標物種、消費者和環境是安全的。在缺乏足夠數據的情況下，專家小組無法就添加劑的有效性做出結論。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 endo-1,4-β-xylanase produced by Komagataella phaffii ATCC PTA-127053 (Xygest™ HT) as a zootechnical feed additive (functional group: digestibility enhancers) for all Suidae at a recommended minimum level of 90,000 U/kg complete feed for pigs in the growing period and 45,000 U/kg complete feed for sows. The production strain is considered suitable for the qualified presumption of safety (QPS) approach to safety assessment. The FEEDAP Panel concluded that the additive is safe at the minimum recommended use level for all growing Suidae and all sows in the lactating phase. Xygest™ HT was considered safe for the consumers and for the environment when used in feed for all Suidae. The additive was considered not to be irritant to eyes and skin, but was considered as a dermal and respiratory sensitiser. In the absence of sufficient data, the FEEDAP Panel was not in the position to conclude on the efficacy of Xygest™ HT for all Suidae.
