據(jù)了解，這種β-甘露聚糖酶由Thermothelomyces thermophilus DSM 33149產(chǎn)生。經(jīng)過評估，專家小組無法就添加劑對目標(biāo)物種和消費(fèi)者的安全性得出結(jié)論，但被認(rèn)為對環(huán)境是安全的。在建議的使用條件下該添加劑對育肥雞具有潛在的有效性，并且該結(jié)論可以推廣到育肥火雞、育肥小型家禽物種和觀賞鳥類。部分原文報(bào)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-d-mannanase produced by Thermothelomyces thermophilus DSM 33149 (Natupulse® TS/TS L) as a zootechnical feed additive for chickens and turkeys for fattening, minor poultry species for fattening and ornamental birds. The additive under assessment, Natupulse® TS/TS L, does not pose any safety concern regarding the production strain. The FEEDAP Panel concluded that the additive is tolerated by chickens for fattening, and this conclusion can be extrapolated to all poultry for fattening. Due to the lack of reliable data regarding the potential of the additive to induce chromosomal damage, the FEEDAP Panel cannot conclude on the safety of the additive for the target species and on the safety for consumer. The use of the additive in animal nutrition is considered safe for the environment. The additive is considered not to be irritant to the skin and eyes but is considered a respiratory sensitiser, although exposure by inhalation is unlikely. The Panel could not conclude on the potential of the additive to be a skin sensitiser. Due to the lack of reliable data, the FEEDAP Panel considered that a potential of the additive to induce chromosomal damage in exposed unprotected users cannot be excluded. Consequently, exposure of users should be minimised. The Panel concluded that the additive Natupulse® TS/TS L has the potential to be efficacious in chickens for fattening at the proposed conditions of use and this conclusion can be extrapolated to turkeys for fattening, minor poultry species for fattening and ornamental birds.

 

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