歐盟評(píng)估非轉(zhuǎn)基因少根根霉菌株AE-TL(B)生產(chǎn)的三酰甘油脂肪酶的安全性

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????2023年8月10日，歐盟食品安全局就一種三酰甘油脂肪酶（triacylglycerol lipase）的安全性評(píng)價(jià)發(fā)布意見(jiàn)。

據(jù)了解，這種食品酶是由非轉(zhuǎn)基因少根根霉菌株AE-TL(B)生產(chǎn)的，旨在通過(guò)酯交換作用用于脂肪和油的改性，并用于酶改性乳制品配料的生產(chǎn)。

經(jīng)過(guò)評(píng)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(guò)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(píng)估小組得出結(jié)論，這種食品酶在預(yù)期使用條件下不會(huì)引起安全問(wèn)題。部分原文報(bào)道如下：

The food enzyme triacylglycerol lipase (triacylglycerol acylhydrolase; EC 3.1.1.3) is produced with the non-genetically modified Rhizopus arrhizus strain AE-TL(B) by Amano Enzyme Inc. The food enzyme was considered free from viable cells of the production organism. It is intended to be used in the modification of fats and oils by interesterification and in the manufacture of enzyme-modified dairy ingredients. Dietary exposure to the food enzyme–total organic solids (TOS) was estimated to be up to 0.057 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 1,960 mg TOS/kg bw per day, the highest dose tested, which, when compared with the estimated dietary exposure, resulted in a margin of exposure of at least 34,386. A search for the similarity of the amino acid sequence of the food enzyme to known allergens was made and no match found. The Panel considered that, under the intended conditions of use, the risk of allergic reactions upon dietary exposure cannot be excluded, 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.

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