Major isoflavone in cotyledons, leaves and roots were daidzin and genistin and their derivatives, genistin and its malonyl derivatives, and malonyl daidzin, respectively.

• 幼苗子叶中的异黄酮以大豆甙和染料木甙及其丙二酰衍生物为主，叶片中主要含有染料木甙及其丙二酰衍生物，根中异黄酮组分以丙二酰大豆甙为主；