歐盟評估非轉基因地衣芽孢桿菌菌株T74生產的α-淀粉酶的安全性

【資料圖】

據了解，這種食品酶是由非轉基因地衣芽孢桿菌菌株T74生產的，旨在用于八種食品制造過程：生產葡萄糖漿和其他淀粉水解產物的淀粉加工、蒸餾酒精生產、精制糖和未精制糖生產、釀造過程、谷物加工、果汁生產的水果和蔬菜加工、果汁以外產品的水果和蔬菜加工以及乳制品的生產。

經過評估，專家小組認為，在預期的使用條件下（蒸餾酒精生產除外），不能排除飲食暴露引起過敏反應的風險，但這種可能性被認為很低。根據所提供的數據，評估小組得出結論，這種食品酶在預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 glucanohydrolase; EC 3.2.1.1) is produced with the non-genetically modified microorganism Bacillus licheniformis strain T74 by Novozymes A/S. The production strain met the qualifications of the qualified presumption of safety (QPS) approach. The food enzyme is intended to be used in eight food manufacturing processes: starch processing for the production of glucose syrups and other starch hydrolysates, distilled alcohol production, refined and unrefined sugar production, brewing processes, cereal-based processes, fruit and vegetable processing for juice production, fruit and vegetable processing for products other than juices and the production of dairy analogues. Since residual amounts of total organic solids (TOS) are removed during two food processes (starch processing for the production of glucose syrups and other starch hydrolysates, distilled alcohol production), dietary exposure was calculated only for the remaining six food manufacturing processes. It was estimated to be up to 0.291 mg TOS/kg body weight per day in European populations. Since the production strain meets the requirements for the QPS approach and no issues of concern arose from the production process of the food enzyme, the Panel considered that toxicological studies were unnecessary. A search for the 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 upon dietary exposure to this food enzyme cannot be excluded (except for distilled alcohol production), 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.