• DOI:10.1021/JF010307X
• Corpus ID: 38900079

Highly polymerized procyanidins in brown soybean seed coat with a high radical-scavenging activity.

@article{Takahata2001HighlyPP,
  title={Highly polymerized procyanidins in brown soybean seed coat with a high radical-scavenging activity.},
  author={Yasuhiro Takahata and Mayumi Ohnishi-Kameyama and Shu Furuta and M. Takahashi and Ikuo Suda},
  journal={Journal of agricultural and food chemistry},
  year={2001},
  volume={49 12},
  pages={
          5843-7
        }
}

• Y. Takahata, M. Ohnishi-Kameyama, +2 authors I. Suda
• Published 3 November 2001
• Chemistry, Medicine
• Journal of agricultural and food chemistry

1,1-diphenyl-2-picrylhydrazyl (DPPH) radical-scavenging activity of the 70% aqueous acetone extract from the seed coat of the brown soybean variety, Akita-Zairai, was investigated. The activity of the seed coat of Akita-Zairai was much higher than that of three other reddish-brown varieties, but lower than that of two black varieties, and was closely dependent on the content of phenolic compounds. In the LH20 column chromatography of Akita-Zairai, high DPPH radical-scavenging activities were detected in the fractions eluted with MeOH and 70% aqueous acetone. Proanthocyanidins were also detected in fractions showing high radical-scavenging activities. Matrix-assisted laser desorption/ionization-time-of-flight mass spectrometry analysis showed that the degree of polymerization (DP) of the procyanidins contained in the brown or black soybean seed coat was as high as DP30.