據(jù)了解，這種食品酶是由轉(zhuǎn)基因里氏木霉菌株AR-352生產(chǎn)的，旨在用于烘焙過程、谷物加工過程、生產(chǎn)淀粉和谷蛋白部分的谷物處理以及雞蛋加工。

 

　　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和誘發(fā)反應(yīng)的風(fēng)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 glucose oxidase (β-d-glucose:oxygen 1-oxidoreductase; EC 1.1.3.4) is produced with the genetically modified Trichoderma reesei strain AR-352 by AB Enzymes GmbH. The genetic modifications do not give rise to safety concerns. The food enzyme is free from viable cells of the production organism, but the absence of its recombinant DNA could not be established. The food enzyme is intended to be used in four food manufacturing processes, namely baking processes, cereal-based processes, grain treatment for the production of starch and gluten fractions, and egg processing. Since residual amounts of total organic solids (TOS) are removed by repeated washing during the production of starch and gluten, dietary exposure was calculated only for the remaining three processes. Dietary exposure to the food enzyme–TOS was estimated to be up to 0.13 mg TOS/kg body weight (bw) per day in European populations. Genotoxicity tests did not indicate a safety concern. The systemic toxicity was assessed by means of a repeated dose 90-day oral toxicity study in rats. The Panel identified a no observed adverse effect level of 1,000 mg TOS/kg bw per day, the highest dose tested, which when compared with the estimated dietary exposure, results in a margin of exposure of more than 7,800. 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, 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 does not give rise to safety concerns, under the intended conditions of use.

 

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