Peptidomic as a tool for assessing protein digestion

Didier Dupont (1)

1 STLO - Science et Technologie du Lait et de l'Oeuf

One way to strengthen our knowledge on the effect of food on human health is to better understand the mechanisms of food disintegration in the gastrointestinal tract. During digestion, dietary proteins are hydrolyzed by digestive enzymes in the stomach and small intestine into a myriad of peptides. Peptidomic approaches have been developed in order to identify the peptides released in the lumen during in vitro and in vivo digestion by mainly using mass spectrometry. It has therefore been possible to demonstrate that peptides known to exert biological activities are present in the lumen at concentrations compatible with a biological action. However, this does not prove that the detected bioactive peptides have an effect on human health and more work is needed to determine peptide bioavailability and lifetime in the bloodstream. Thousands of peptides can be identified unambiguously and some efforts need to be done to develop new strategies of data treatment.

Mots clés: protein; human health

Mots clés: nutrition; digestion; protéine; peptide bioactif; peptidomique; santé humaine

Domaines: Alimentation et Nutrition; Ingénierie des aliments

Didier Dupont. Peptidomic as a tool for assessing protein digestion. Current Opinion in Food Science, 2017, 16, pp.53-58. ⟨10.1016/j.cofs.2017.08.001⟩. ⟨hal-01581634⟩