Identification of Proteins and Peptide Biomarkers for Detecting Banned Processed Animal Proteins (PAPs) in Meat and Bone Meal by Mass Spectrometry

Hélène Marbaix, Dimitri Budinger, Marc Dieu, Olivier Fumière, Nathalie Gillard, Philippe Delahaut, Sergio Mauro, Martine Raes

Résultats de recherche: Contribution à un journal/une revueArticleRevue par des pairs

Résumé

The outbreak of bovine spongiform encephalopathy (BSE) in the United Kingdom in 1986, with processed animal proteins (PAPs) as the main vector of the disease, has led to their prohibition in feed. The progressive release of the feed ban required the development of new analytical methods to determine the exact origin of PAPs from meat and bone meal. We set up a promising MS-based method to determine the species and the source (legal or not) present in PAPs: a TCA-acetone protein extraction followed by a cleanup step, an in-solution tryptic digestion of 5 h (with a 1:20 protein/trypsin ratio), and mass spectrometry analyses, first without any a priori, with a Q-TOF, followed by a targeted triple-quadrupole analysis. Using this procedure, we were able to overcome some of the major limitations of the official methods to analyze PAPs, detecting and identifying prohibited animal products in feedstuffs by the monitoring of peptides specific for cows, pigs, and sheep in PAPs.

langue originaleAnglais
Pages (de - à)2405-14
Nombre de pages10
journalJournal of Agricultural and Food Chemistry
Volume64
Numéro de publication11
Les DOIs
Etat de la publicationPublié - 2016

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