Comparative studies on some leguminous protein sources and soybean proteins

The nutrient contents as well as the amino acid pattern of broad bean, kidney bean and soybean were determined. The levels of most of the amino acids were also estimated. Heat treatment of the leguminous seeds caused a noticeable reduction in the levels of methionine, cystine, lysine and tryptophan. Animal experiments showed high figures for digestibility, biological value and net protein utilization for the soybean diet whereas the broad bean and kidney beans gave lower values of these measurement compared with soybean.