據(jù)了解，這種食品酶是由轉(zhuǎn)基因地衣芽孢桿菌菌株NZYM-AY生產(chǎn)的，旨在用于生產(chǎn)葡萄糖漿和其他淀粉水解產(chǎn)物的淀粉加工，以及蒸餾酒精生產(chǎn)。

 

　　經(jīng)過評估，專家小組認為，在預(yù)期的使用條件下（蒸餾酒精生產(chǎn)除外），不能排除飲食暴露引起過敏和誘發(fā)反應(yīng)的風險，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)，評估小組得出結(jié)論，這種食品酶在預(yù)期使用條件下不會引起安全問題。部分原文報道如下：

 

　　The food enzyme α-amylase (4-α-d-glucan glucanhydrolase; EC 3.2.1.1) is produced with the genetically modified Bacillus licheniformis strain NZYM-AY by Novozymes A/S. The genetic modifications do not give rise to safety concerns. The food enzyme is considered free from viable cells of the production organism and its DNA. It is intended to be used in starch processing for the production of glucose syrup and other starch hydrolysates, and distilled alcohol production. Since residual amounts of total organic solids are removed by distillation and by the purification steps applied during the production of glucose syrups, dietary exposure estimation was considered unnecessary. The production strain of the food enzyme fulfils the requirements for the qualified presumption of safety (QPS) approach to safety assessment. As no other concerns arising from the manufacturing process have been identified, the Panel considers that toxicological tests are not needed for the assessment of this food enzyme. A search for similarity of the amino acid sequence of the food enzyme to known allergens was made and one match was found. The Panel considered that, under the intended conditions of use (other than distilled alcohol production) the risk of allergic sensitisation and elicitation reactions by dietary exposure cannot be excluded, but the likelihood for this to occur is considered to be low. based on the data provided, the Panel concluded that this food enzyme did not give rise to safety concerns under the intended conditions of use.

 

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