The jumbo squid fishery in Peru is the second most important after the anchovy fishery. During its manufacturing process, only 50% to 60% of the total jumbo squid is used, thereby, the residues could be used to develop functional foods. Cañihua (Chenopodium pallidicaule Aellen) is an Andean pseudocereal from the highlands of Peru characterized by its high nutritional value. This work aimed to develop extruded snacks with protein hydrolysed (PH) from jumbo squid by-product (JSBP) due to its high protein content, low price, and high availability. Four extruded snacks with corn flour (55%), rice flour (20% to 30%) and cañihua flour (15%) were enriched with PH from JSBP (4% to 10%) and developed using a twin-screw extruder. The extruded snacks were characterized by their physical properties (density, expansion ratio, water absorption index) and shelf life. The addition of PH from JSBP in...

Cushuro (Nostoc sphaericum) is an underexplored blue-green alga currently used as a food ingredient, natural medicine, and organic fertilizer in Peru. Our paper aims to address the nutritional and biological values of cushuro protein. Dried cushuro had a high amount of minerals as calcium (567 ± 64 mg/100 g to 1357 ± 153 mg/100 g), iron (13.5 ± 1.5 mg/100 g to 26.2 ± 2.9 mg/100 g, magnesium (95 ± 11 mg/100 g to 126 ± 14 mg/100 g) and protein content (32.4 ± 0.5 g/100 g to 36.9 ± 0.2 g/100 g. Protein solubility was assessed to optimize the extraction of cushuro protein by ultrasound-microwave assisted extraction, after that, the protein contents in cushuro fractions were over 70%. All detected cushuro protein fractions had Mw < 24 kDa and a better digestibility than legume products. In addition, cushuro protein products tend to have umami ta...