@misc{oai:repo.qst.go.jp:00069227, author = {Kawashima, Tomonori and Nakanishi, Ikuo and Ohkubo, Kei and Manda, Sushma and Fukuhara, Kiyoshi and Okuda, Haruhiro and Ozawa, Toshihiko and Ikota, Nobuo and Anzai, Kazunori and Fukuzumi, Shunichi and et.al and 中西 郁夫 and Manda Sushma and 小澤 俊彦 and 安西 和紀}, month = {Dec}, note = {Antioxidants, such as catechin and vitamin E, are known to act as a strong radical-scavenger against reactive oxygen species in the human body, where there are various metal ions such as sodium, ferric, and magnesium ions. These metal ions may affect the radical-scavenging activity of the antioxidants. In fact, we have previously reported that the radical-scavenging rate of (+)-catechin is accelerated by magnesium ion. Curcumin (CU), extracted from turmeric, has been found to show anticancer and antioxidative activities. In particular, strong antioxidative activity is relate to two 4-propenylphenol moieties in its molecule. On the other hand, CU also possesses an enolic structure, which may interact with metal ions in biological systems. A complex formation between CU and metal ions may affect the electron distribution in the CU molecule, resulting in change in the radical-scavenging activity of CU. Thus, in this study, we demonstrated the interaction and the effect of radical-scavenging activity between CU and metal ions., The 4th Joint Meeting of the Society for Free Radical Research Australasia and Japan (SFRR A+J 2007)}, title = {Effects of Interaction between Curcumin and metal Ions on the Radical-Scavenging Reaction}, year = {2007} }