Soybean(Glycine max(L.) Merill) is a good source of vegetable oil and high-quality protein. Soy foods have became popular food worldly because of its ingredients. Recently, as the well-being trends, the demand for soybean has increased in the West as well as in Asian countries. It contains valuable source of dietary isoflavones and phenolic compounds which are important secondary metabolites.
The 33 germplasm cultivated in Yeoju, Gyeonggi-do region. The obtained results showed that isoflavones and phenolic compounds were significantly various. The highest compounds is malonyl genistin (230.89㎍𝑔-1), the lowest is genistin(0.70㎍𝑔-1) and the highest germplasm is Dunggeunseolitaekong (2222.60㎍𝑔-1) in isoflavone. In phenolic compounds, the highest compounds is myricetin (155.59㎍𝑔-1) and the lowest is vanillin (1.89㎍𝑔-1). Total containment of phenolic compounds is the highest in Dunggeunseolitaekong (803.76㎍𝑔-1) germplasm.