據了解，這種食品酶是由轉基因黑麴黴菌株NZYM-BR生產的，旨在用於生產葡萄糖漿和蒸餾酒精的澱粉加工中。

 

　　經過評估，專家小組認為，在預期的使用條件下，不能排除飲食暴露引起過敏和誘發反應的風險，但這種情況發生的可能性很低。根據所提供的數據，小組得出結論，該食品酶在預期的使用條件下不會引起安全隱患。部分原文報道如下：

 

　　The food enzyme glucan 1,4-α-glucosidase (4-α-d-glucan glucohydrolase, EC 3.2.1.3) is produced with the genetically modified Aspergillus niger strain NZYM-BR by Novozymes A/S. The genetic modifications do not give rise to safety concerns. The food enzyme is free from viable cells of the production organism and its DNA. The food enzyme is intended to be used in starch processing for the production of glucose syrups and distilled alcohol. Since residual amounts of total organic solids (TOS) are removed by the purification steps applied during the production of glucose syrups and by distillation, dietary exposure estimation was co nsidered not necessary. Genotoxicity tests did not raise 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 1,135 mg TOS/kg body weight (bw) per day, the highest dose tested. Similarity of the amino acid sequence of the food enzyme to those of known allergens was searched for and two matches were found. The Panel co nsidered that under the intended co nditions 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 co nsidered to be low. ba sed on the data provided, the Panel co ncluded that this food enzyme does not give rise to safety co ncerns under the intended co nditions of use.