EFSA Panel on Food Enzymes (FEZ), José Manuel Barat Baviera, Claudia Bolognesi, Francesco Catania, Gabriele Gadermaier, Ralf Greiner, Baltasar Mayo, Alicja Mortensen, Yrjö Henrik Roos, Marize L. M. Solano, Monika Sramkova, Henk Van Loveren, Laurence Vernis, Andrew Chesson, Lieve Herman, Jaime Aguilera, Magdalena Andryszkiewicz, Ana Criado, Yi Liu, Elsa Nielsen, Karin Norby, Holger Zorn
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引用次数: 0
摘要
这种食品酶是一种三酰甘油脂肪酶(三酰甘油酰基水解酶;EC 3.1.1.3),由 Amano Enzyme Inc. 公司用非转基因的 Limtongozyma cylindracea 菌株 AE-LAYH (B) 生产。它可用于六种食品生产工艺。由于食品酶-总有机固体(TOS)的残留量是在一道工序中去除的,因此只计算了其余五道食品生产工序的膳食摄入量。据估计,欧洲人每天从膳食中摄入的 TOS 量最高可达 0.315 毫克 TOS/公斤体重(bw)。由于该生产菌株符合安全评估的质量推定(QPS)方法,而且没有发现食品酶的生产过程引起的关切问题,因此专家小组认为,除过敏性评估外,无需进行其他毒理学研究。专家小组就食物酶的氨基酸序列与已知过敏原的氨基酸序列进行了同源性检索,结果发现有一个氨基酸序列与蜜蜂毒液过敏原相吻合。专家小组认为,不能排除因膳食接触(特别是对蜂蜜过敏者)而发生过敏反应的风险,但认为这种风险较低。根据所提供的数据、生产菌株的 QPS 状态以及食品酶制剂生产过程中没有引起关注的问题,专家小组得出结论认为,在预定使用条件下,这种食品酶制剂不会引起安全问题。
Safety evaluation of the food enzyme triacylglycerol lipase from the non-genetically modified Limtongozyma cylindracea strain AE-LAYH (B)
The food enzyme, a triacylglycerol lipase (triacylglycerol acylhydrolase; EC 3.1.1.3), is produced with the non-genetically modified Limtongozyma cylindracea strain AE-LAYH (B) by Amano Enzyme Inc. It is intended to be used in six food manufacturing processes. Since residual amounts of food enzyme–total organic solids (TOS) are removed in one process, dietary exposure was calculated only for the remaining five food manufacturing processes. It was estimated to be up to 0.315 mg TOS/kg body weight (bw) per day in European populations. As the production strain qualifies for the quality presumption of safety (QPS) approach of safety assessment and no issue of concern arising from the production process of the food enzyme were identified, the Panel considered that no toxicological studies other than the assessment of allergenicity were necessary. A homology search for the amino acid sequence of the food enzyme to those of known allergens was made and one match with a honeybee venom allergen was found. The Panel considered that a risk of allergic reactions by dietary exposure, particularly in individuals allergic to honey, cannot be excluded, but is considered to be low. Based on the data provided, the QPS status of the production strain and the absence of issues of concern arising from the food enzyme manufacturing process, the Panel concluded that this food enzyme does not give rise to safety concerns under the intended conditions of use.
期刊介绍:
The EFSA Journal covers methods of risk assessment, reports on data collected, and risk assessments in the individual areas of plant health, plant protection products and their residues, genetically modified organisms, additives and products or substances used in animal feed, animal health and welfare, biological hazards including BSE/TSE, contaminants in the food chain, food contact materials, enzymes, flavourings and processing aids, food additives and nutrient sources added to food, dietetic products, nutrition and allergies.