Work

Micellar casein and sodium caseinate supramolecular structure differently impacts subsequent food intake in pigs

Year: 2024

Type: article

Abstract: Tc-colloïd was followed using gamma-scintigraphy while plasma kinetics of ghrelin, GLP-1, insulin and free amino acids were evaluated. The amount of feed consumed 1, but not 4 h, after SC ingestion was lower than the amount of feed consumed after MC ingestion (P = 0.03). Gastric emptying parameters, plasma ghrelin, GLP-1 and insulin kinetics after both types of casein ingestion were not significantly different (P > 0.05). However, plasma free amino acid concentrations, known to reduce food intake, increased after both SC and MC ingestion but was greater after SC than MC ingestion from 60 to 120 min (P = 0.009). In conclusion, casein supramolecular structure in a preload drink impacts differently subsequent energy intake, likely due to difference in amino acid bioavailability. Micellar casein exhibits less anorectic effect than sodium caseinate, a property that could benefit population with high protein need but low appetite such as elderly.

Source: Food Research International

DOI: 10.1016/j.foodres.2024.115465