Antioxidative properties of procyanidins B-1 and B-3 from azuki beans in aqueous systems.

• ARIGA Toshiaki

  Research and Development Division, Kikkoman Corporation

• KOSHIYAMA Ikunori

  Research and Development Division, Kikkoman Corporation

• FUKUSHIMA Danji

  Research and Development Division, Kikkoman Corporation

抄録

Two kinds of dimeric procyanidins were isolated in pure form from azuki beans by preparative HPLC. They were identified as procyanidins B-1 and B-3, on the basis of their UV, IR FAB-MS and ¹H-NMR spectra, and an analysis of the acid hydrolyzed products. The procyanidins were evaluated as antioxidants for linoleic acid in an aqueous linoleic acid-β-carotene model system. In the range of the tested concentrations (5 × 10^-5 - 100 × 10^-5%) and pH values (7-9), they showed remarkable antioxidative activities. Their activities were much stronger than those of such commercially available natural antioxidants as ascorbic acid, γ-oryzanol, gallic acid, L-tryptophan, (+)-catechin and D-α-tocopherol. The hydrogen- or electron-donating activities of procyanidins to the DPPH radical in a 50% ethanol solution were also stronger than those of ascorbic acid and D-α-tocopherol.

収録刊行物

• Agricultural and Biological Chemistry

  Agricultural and Biological Chemistry 52 (11), 2717-2722, 1988

  公益社団法人 日本農芸化学会

キーワード

• General Agricultural and Biological Sciences
• General Biochemistry, Genetics and Molecular Biology

詳細情報

• CRID: 1390001206463958528
• NII論文ID: 110006323530
• NII書誌ID: AA00515312
• DOI: 10.1271/bbb1961.52.2717
• COI: 1:CAS:528:DyaL1MXjslyqsA%3D%3D
• ISSN: 18811280
• ISSN: 00021369
• ISSN: http://id.crossref.org/issn/00021369
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可