Molecular weight distribution and antioxidant activities of each protein composition in germinal black soybean were studied.Protein components in germinal black soybean were extracted and separated by ammonium sulfate method.Molecular weight distribution of each protein component was measured using SDS- PAGE method,and antioxidant activity were studied by free radicals scavenging test and anti- H2O2- induced damaged skin fibroblast test.Molecular weight of proteins in germinal black soybean was concentrated...