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Should digestion assays be used to estimate persistence of potential allergens in tests for safety of novel food proteins?

机译:在新型食品蛋白质安全性测试中是否应使用消化测定法来估计潜在过敏原的持久性?

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摘要

Food allergies affect an estimated 3 to 4% of adults and up to 8% of children in developed western countries. Results from in vitro simulated gastric digestion studies with purified proteins are routinely used to assess the allergenic potential of novel food proteins. The digestion of purified proteins in simulated gastric fluid typically progresses in an exponential fashion allowing persistence to be quantified using pseudo-first-order rate constants or half lives. However, the persistence of purified proteins in simulated gastric fluid is a poor predictor of the allergenic status of food proteins, potentially due to food matrix effects that can be significant in vivo. The evaluation of the persistence of novel proteins in whole, prepared food exposed to simulated gastric fluid may provide a more correlative result, but such assays should be thoroughly validated to demonstrate a predictive capacity before they are accepted to predict the allergenic potential of novel food proteins.
机译:在西方发达国家,食物过敏会影响大约3-4%的成年人和多达8%的儿童。日常使用纯化蛋白进行的体外胃模拟消化研究结果通常用于评估新型食物蛋白的潜在致敏性。在模拟的胃液中,纯化蛋白的消化通常以指数方式进行,从而可以使用伪一级速率常数或半衰期对持久性进行定量。然而,纯化的蛋白质在模拟胃液中的持久性不能很好地预测食物蛋白质的致敏性,这可能是由于食物基质在体内的影响很大。对新型蛋白质在暴露于模拟胃液中的整体准备食物的持久性的评估可能会提供更相关的结果,但是在接受这些测定以预测新食物蛋白质的致敏潜力之前,应彻底验证此类测定方法以显示出预测能力。

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