The objective of this study was to determine the chemical composition, glucosinolate content and biological value of extruded black maca flour and its mixture with oats. The black maca was collected, subjected to dehydration, extruded and grinding, obtaining extruded flour and then analyzed, then it was mixed with precooked oats in three different ratios (w / w), oats: extruded black maca flour (80:20; 85:15 and 90:10). The results of the chemical composition of the extruded black maca flour were protein 11.62% and ash 4.28%, highlighting its iron content 30.71mg / 100g and essential amino acids such as lysine, valine, threonine, leucine, isoleucine and arginine. The total glucosinolate content of extruded maca flour was 7.93 ± 0.17 μmol / g (b.s). The sensory evaluation of the mixture showed a significant difference between mixtures, the ratio 20:80 being the most sensory acceptable. ...