Paper electrophoretic separation of soybean protein using phosphate buffer(pH. 7.6, I. 0.18) was carried out and revealed five components. The ratio of each component extracted with the phosphate buffer was estimated as follows. 도표 Also, each component of phosphate buffer extract was identified as: 도표 The quantitative determination of the components was performed with twenty-five varieties of Korean soybean and turned out to indicate marked difference between the varieties in the ratio of the components.