In sports nutrition, protein intake is essential to stimulate protein synthesis and repair muscle damage caused by exercise. The search for non-traditional protein sources has increased in recent years. Quinoa (Chenopodium quinoa Wild) and broad beans (Vicia faba L.) grains could be used in the production of protein products. Broad beans are an introduced and widely expanded crop in South America; it is part of the Argentine Northwest Andean population diet. The aim of this work was to evaluate the functional and nutritional properties of hydrolyzed quinoa (HQF) and broad bean (HBF) flours for their use in the elaboration of protein foods for athletes. Both hydrolyzed flours were obtained using Flavourzyme at 50 °C and pH 8 for 3 and 1 h, respectively. HQF presented a higher degree of hydrolysis (21.79%), while HBF had higher protein content (57.31%), yield (32.14%), and protein recovery (71.31%). In HBF and HQF, Na and K were the most abundant minerals, both necessary for the replacement of electrolytes lost during physical training. HBF and HQF presented 5909.63 and 2708.91 mg/100 g of properties, respectively, and HQF presented higher emulsifying branched amino acids content, essential in sports nutrition. Regarding technological activity (61.30 m²/g), stability indexes (158.6 min), and foaming capacity (131%); HBF shows a wider range of solubility in function of pH, and good foaming stability (68–92%). These results indicate that HQF and HBF could be potential ingredients for athletes’ protein supplements formulation.

Hydrothermal treatments are suitable for modifying the physicochemical properties of flours because they favor the total or partial gelatinization of starch, allowing products with different rheological and water absorption capacities to be obtained. The objective of the study was to apply the processes of extrusion cooking (CE), alkaline extrusion (OHE) and traditional nixtamalization (N) in four races of native maize from the province of Jujuy, Argentina (perlita, cuzco, chulpi and culli) to obtain flours with adequate aptitudes for use in gluten-free doughs. The different processes and the characteristics of each race had a significant effect (p < 0.05) on the hydration properties of the flours, both factors showing a greater effect on flour from the chulpi race, indicated by the increase in its hydration properties. Therefore, in the textural properties, the elasticity and the viscosity indices of the dough were dependent on the races and the processes, influencing these properties by the subjective water capacity. CE gives greater elasticity to the dough, presenting the highest values for the dough of the perlita race (5.58 mm). OHE provided a lower viscosity index (0.03 N × s) in the dough of the perlita race, indicating a poor integration of the flour components. The N did not confer remarkable properties to the dough, showing breakage of the dough touched. It is important to note that the OHE process provided dough with adequate properties due to intermediate values of elasticity (4.47–4.5 mm) and resistance to kneading (0.34–0.078 N × s). This study will optimize the development of extensible dough from the chulpi and culli races.

The chemical and techno-functional properties of nine maize races from the Andean zone of Jujuy, Argentina, in the process of reintroduction, were determined. Principal component analysis (PCA) was applied to establish the differences between them. The breeds studied showed high variability in their chemical and techno-functional properties, which would indicate that their applications in the food industry will also be differentiated. The PCA analysis allowed us to group them into four groups, and the Capia Marron and Culli races showed unique properties, mainly in the formation of gels.