In vivo digestion of infant formula in piglets: protein digestion kinetics and their potential bioactivity

Karima Bouzerzour (1) , Julien Jardin (1) , I. Cuinet (2) , F. Morgan (2) , Isabelle Luron (3, 3) , Didier Dupont (1)

1 STLO - Science et Technologie du Lait et de l'Oeuf
2 Lactalis
3 SENAH - Systèmes d'élevage, nutrition animale et humaine

Infant formula (IF) are major sources of proteins for the neonate and represent the only alternative when breast-feeding is not possible. During IF manufacture, protein structures are modified by processing conditions. The resistance of IF proteins to digestion in different compartment of the digestive tract is still unknown. Aim. The objective was to study the digestion of IF milk proteins i.e. caseins (Cns), b-lactoglobulin (b-lg) and a-lactalbumin (a-la), over time in the stomach, jejunum and ileum of 18 piglets (taken as a model of human neonates), and to identify peptides present in the small intestine.

Mots clés: digestion; enfant; formulation; intestin; peptide bioactif; santé humaine; cinétique

Domaines: Ingénierie des aliments; Alimentation et Nutrition

Karima Bouzerzour, Julien Jardin, I. Cuinet, F. Morgan, Isabelle Luron, et al.. In vivo digestion of infant formula in piglets: protein digestion kinetics and their potential bioactivity. Biopolymères 2010, Matrices alimentaires : Construction, déconstruction, propriétés sensorielles et nutritionnelles, Dec 2010, Le croisic, France. , 2010. ⟨hal-01190811⟩