Predicted quantity of bioactive peptides (mg/d) released after digestion of either dietary proteins or gut endogenous proteins in the gastrointestinal tract.

1<p>Estimated based on the predicted total number of bioactive peptides released after gastric and small intestinal digestion (from <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0098922#pone-0098922-t004" target="_blank">Table 4</a>), and the moles and molar masses of the respective proteins; and considering that the majority of the predicted bioactive peptides are ‘dipeptides’. All of the evaluated food proteins are used as a model for the remaining proteins in the respective food product.</p>2<p>The model diet is based on a recommended diet for a healthy adult weighing 60 kg, supplying 0.66 g/kg body weight protein per day, amounting to a protein intake of 40 g per day, designed to comply with the FAO recommendations 1]; whereby dairy, wheat, soya products, chicken egg products, chicken meat contribute 4, 14, 3, 6 and 13 g of protein respectively; Protein content of food products estimated based on the United States Department of Agriculture (USDA) Nutrient Data Laboratory database 42].</p>3<p>Calculated based on Moughan, 2011 41], using the amount of gut endogenous protein nitrogen secreted into the gastrointestinal tract, but, excludes protein nitrogen derived from epithelial and bacterial cells.