Relationship between trace metal concentration and antioxidative activity of ancient rice bran (red and black rice) and a present-day rice bran (Koshihikari). |
| |
Authors: | Isao Kaneda Fukuzo Kubo Hiromu Sakurai |
| |
Institution: | Office Komenuka-club, Basic Research Department, 4-16-5 Higashishirakawadai, Suma-ku, Kobe 654-0102, Japan. isao-k-kirakira@coffee.ocn.ne.jp |
| |
Abstract: | Antioxidative activity and polyphenol and trace metal content in bran from ancient rice varieties (red and black rice) and a present-day variety of rice (Koshihikari) were measured. The antioxidative properties of rice bran in terms of scavenging and quenching activity for reactive oxygen species (ROS), including superoxide anion radicals (*O(2)(-)), hydroxyl radicals (*OH), singlet oxygen ((1)O(2)) and lipid peroxide (LOO*), correlated well with polyphenol and trace metal content. In particular, the possibly that Mn content greatly contributes to the antioxidative properties of rice bran was revealed. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|