The authors developed an experimental study with albino rats, in order to evaluate nutritional value of three different mixtures of yellow beans and soya, determining NPR (Net Protein Ratio) and NPU (Net Protein Utilization) according to BENDER & DOELL (1957) index.
They verified that the association of yellow bean and soya, in the three proportions that were studied, efficiency of protein utilization increased considerably when compared to yellow beans used alone. There was no significative difference between 75/25 and 50/50 mixture proportions, but there were differences among these two and the 25/75 mixture, wich, revealed proteic value similar to the soya alone.