據(jù)了解，這種食品酶是由轉(zhuǎn)基因枯草芽孢桿菌菌株LMG S-24584生產(chǎn)的，旨在用于谷物的加工，以生產(chǎn)焙烤產(chǎn)品。

　　

　　經(jīng)過(guò)評(píng)估，專家小組認(rèn)為，在預(yù)期的使用條件下，不能排除通過(guò)飲食接觸引起過(guò)敏反應(yīng)的風(fēng)險(xiǎn)，但這種情況發(fā)生的可能性很低。根據(jù)所提供的數(shù)據(jù)，小組得出結(jié)論，該食品酶在預(yù)期的使用條件下不會(huì)引起安全問(wèn)題。部分原文報(bào)道如下：

　　

　　The food enzyme endo-1,4-β-xylanase (4-β-d-xylan xylanohydrolase, EC 3.2.1.8) is produced with the genetically modified Bacillus subtilis strain LMG S-24584 by Puratos NV. In a previous opinion, the Panel noted the presence of recombinant DNA in all food enzyme batches tested. As a follow-up, the applicant changed the manufacturing process of the food enzyme and provided new data. The genetic modifications do not give rise to safety concerns and the production strain fulfils the requirements for the QPS approach to safety assessment. The food enzyme is free from viable cells of the production organism and its DNA. It is intended to be used in the processing of cereals and other grains for the production of baked products. Dietary exposure is estimated to be up to 0.010 mg TOS/kg body weight per day in European populations. As no concerns arising from the microbial source and its genetic modifications or from the manufacturing process have been identified, the Panel considered that toxicological tests were not needed for the assessment of this food enzyme. A search for the homology of the amino acid sequence of the food enzyme to known allergens was made and no match was found. The Panel considered that the risk of allergic reactions upon dietary exposure cannot be excluded, but the likelihood is low. based on the data provided, the Panel concluded that this food enzyme does not give rise to safety concerns, under the intended conditions of use.

　　

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