據(jù)了解，這種食品酶是由非轉(zhuǎn)基因乳酸克魯維酵母菌株GAL生產(chǎn)的，旨在用于牛奶加工、發(fā)酵乳制品生產(chǎn)和乳清加工中的乳糖水解，也可用于家庭乳制品中的乳糖水解。

 

　　經(jīng)過評估，專家小組認(rèn)為，在預(yù)期的使用條件下，不能排除飲食暴露引起過敏反應(yīng)的風(fēng)險(xiǎn)，但這種可能性被認(rèn)為很低。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(bào)道如下：

 

　　The food enzyme β-galactosidase (β-d-galactoside galactohydrolase; EC 3.2.1.23) is produced with the non-genetically modified Kluyveromyces lactis strain GAL by DSM Food Specialties B.V. It is intended to be used for the lactose hydrolysis in milk processing, production of fermented milk products and whey processing. It is also intended to be used for lactose hydrolysis in milk products at home. Dietary exposure to the food enzyme-total organic solids (TOS) was estimated to be up to 10.78?mg TOS/kg body weight per day in European populations. As the production strain of K. lactis strain GAL qualifies for the Qualified Presumption of Safety (QPS) approach to safety assessment and no issue of concern arose from the production process, no toxicological data are required. A search for similarity of the amino acid sequence of the food enzyme to known allergens was made and no match was found. The Panel considered that, under the intended conditions of use, the risk of allergic reactions by dietary exposure cannot be excluded, but the likelihood for this to occur 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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