Abstract
The rigorous safety assessment conducted on genetically modified crops includes an evaluation of allergenic potential for an associated newly expressed protein (NEP). Since no single method is recognized as a predictor for protein allergenicity, a weight of evidence approach (WOE) has been adopted. In vitro digestion is a part of the WOE approach and is used to evaluate the susceptibility of a NEP to digestion by gastrointestinal proteases. In 2017, the European Food Safety Authority outlined additional digestion conditions and suggested liquid chromatography tandem mass spectrometry (LC-MS/MS) as an analytical method to detect small post-digestion peptides. This technical review paper focuses on the question of whether LC-MS/MS can aid in assessing allergenic potential of in vitro digestion products generated under the newly proposed conditions. After an extensive review, it was determined that LC-MS/MS can detect very small digestion products. However, the method cannot provide relevant information to differentiate whether these products are allergenic or non-allergenic. Therefore, the use of LC-MS/MS for a standard in vitro digestibility assessment provides no improvement in allergenicity prediction.
 doi: 10.21423/jrs-v09i1wang
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