據(jù)了解，Amaferm®是米曲霉（Aspergillus oryzae）菌株NRRL 458的發(fā)酵產(chǎn)物，含有α-淀粉酶和纖維素酶活性，被授權(quán)用作奶牛飼料添加劑。經(jīng)過評估，F(xiàn)EEDAP專家組不能確認(rèn)先前得出的關(guān)于生產(chǎn)菌株安全性的結(jié)論，因此也不能確認(rèn)此添加劑對目標(biāo)物種和消費(fèi)者的安全性。部分原文報道如下：
AMAFERM®is a fermentation product produced by Aspergillus oryzae NRRL 458, containing alpha‐amylase and cellulase enzyme activities, authorised for use as a feed additive for cows. This scientific opinion concerns the renewal of the authorisation of this additive for its use in dairy cows. In its former opinion, the EFSA Panel on Additives and Product or Substances used in Animal Feed （FEEDAP）， based on the data and knowledge available at that time, concluded that the additive is safe for cows, for the consumers and the environment. In that assessment, the Panel also concluded that the additive is non‐irritant or a dermal sensitiser but should be considered a potential respiratory sensitiser. The applicant provided new information regarding the characterisation of the additive in terms of enzyme activities as well as information concerning the production strain. Regarding the enzyme activities in the fermentation product, weaknesses and limitations in the methods of analysis were noted. The information regarding the production strain did not permit to confirm its taxonomic classification, moreover uncertainty remains regarding the presence of viable cells/spores in the final product. Therefore, the FEEDAP Panel could not confirm the previously drawn conclusions regarding the safety of the production strain and consequently could not confirm the safety for the target species and consumers. There was no need for assessing the efficacy of the additive in the context of the renewal of the authorisation.
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