A new colorimetric method for determining antioxidant levels using 3,5-dibromo-4-nitrosobenzene sulfonate (DBNBS)

Takeki Tomikawa, Taichi Kashiwagi, Takaaki Komatsu, Shigeru Kabayama, Noboru Nakamichi, Kiichiro Teruya, Sanetaka Shirahata

研究成果: ジャーナルへの寄稿学術誌査読

抄録

We describe here a novel assay that determines the total a+ntioxidative activities of known antioxidants and antioxidants in beverages. The method employs the substrate 3,5-dibromo-4-nitrosobenzene sulfonate (DBNBS) that yields the colored product 3,5,3’,5’-tetrabromoazobenzene sulfate sodium salt (azo-TBBS). The amounts of azo-TBBS are measured using HPLC and then used to calculate total antioxidative capacity (TAC) values. We first show that the TAC values measured using the new DBNBS system were significantly higher compared with the control. The assay was validated through further analysis of 56 compounds, including previously characterized antioxidants. The data are consistent with published values. Here we describe in detail the application of the DBNBS method to the measurement of the TAC values of eight beverages, including wines and fruit juices. The DBNBS assay employs a readily applicable protocol that sensitively determines the levels of antioxidants in foodstuffs.

本文言語英語
論文番号101797
ジャーナルMethodsX
9
DOI
出版ステータス出版済み - 1月 2022

!!!All Science Journal Classification (ASJC) codes

  • 臨床生化学
  • 医療検査技術

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