Plant-based protein foods are increasingly common, but data on their nutritional quality scarce. This study evaluated it for seitan (wheat-based food), tofu (soya-based soya milk, and a pea emulsion. The true ileal digestibility (TID) of amino acids was determined in minipigs, to calculate the digestible indispensable acid score (DIAAS). TID proteins high not significantly different between tes...

The protein constituents and thermal properties of hemp (Cannabis sativa L.) protein isolate (HPI) as well as 11Sand 7S-rich HPIs (HPI-11S and HPI-7S) were characterized by sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) and different scanning calorimetry (DSC), and their amino acid composition and in vitro digestibility were also evaluated, as compared to soy protein isola...

To determine the ME and amino acid digestibility of 5 soybean meal (SBM) samples, a precision-fed rooster assay and a chick assay were conducted. The 5 samples were cold-pressed (extruded) soybean meals or solvent-extracted (defatted) soybean meal. Of the cold-pressed varieties (unheated), there was an ultra-low trypsin SBM, a low-trypsin SBM, and a heated and unheated commodity SBM. The solven...

Protein biofortification into crops is a means to combat childhood protein-energy malnutrition (PEM) in developing countries, by increasing the bioavailability of protein in staple plant foods and ensuring sustainability of the crop. Protein biofortification of sorghum has been achieved by both chemically induced mutation and genetic engineering. For this biofortification to be effective, the i...

Germination was investigated as a bioprocess for enhancing the digestibility and bioactivity of pigeon pea (Cajanus cajan). Pigeon seeds were germinated 0, 4, 24 48 h. Electrophoresis revealed that 7S vicilin subunits most abundant proteins in control seeds. FTIR showed loss β sheet gain α-helix contents, microscopy cell wall degradation decreased seed protein yield due to partial hydrolysis pr...

Protein digestibility and quality of six enteral nutrition products sold in Canada were studied by rat balance and growth methods. Casein+L-methionine, 0.2 g/100 g diet (control) and six enteral products (freeze-dried) were fed as the sole source of protein in diets containing 8.61-9.12 g/100 g protein (N x 6.25) to weanling and 18-mo-old rats for a period of 2 and 1 wk, respectively. A protein...

Two experiments were conducted to determine the effects of dietary NDF on apparent ileal and fecal digestibility and portal flux of nitrogen (N) and amino acids, and on N retention in growing pigs. In four equal portions (at 0600, 1200, 1800, and 2400) barrows on Treatment B received a basal diet, based on casein, cornstarch, and dextrose, at a feeding level of 2.6 times energy for maintenance....

Soy protein isolate and egg white were added to cassava-banana gluten-free pasta the effects on nutritional quality, digestibility properties, corrected amino acid (PDCAA), sensory acceptance of was observed. Banana-cassava composite flour (75:25) blended with soy or at following rates: 0, 5, 10, 15 g/100 g flour. Cooked samples analysed for total phenolic content (TPC), antioxidant activity, p...

Earlier work showed that the nutritive value of casein was decreased by dry heat and that the addition of lysine restored its nutritive value (1). The lysine was not damaged materially by the heat treatment, since analyses of acid hydrolysates of heated casein with lysine decarboxylase (2) and chemical isolation as the picrate (3) showed no decrease in the lysine content. Eldred and Rodney (2),...