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Paper Details

Assessment of Redox Status in Commercial Bottled Mineral Water

Ken-ichiro Matsumoto, Yukihiro Ogawa, Masato Kamibayashi, Minako Nyui, Ikuo Nakanishi, Shigeaki Suenaga, Hiromu Ito, Hirofumi Matsui, Toshihiko Ozawa, Hiroko P. Indo and Hideyuki J. Majima

Journal Title:Journal of Clinical Nutrition and Food Science
Abstract


Redox status in commercial bottled mineral water, ILOHAS, Mt. Fuji, Choju, Crystal Geyser, Volvic, Evian, Vittel, Perrier and Contrexville was studied. Among the 9 water, Choju and Perrier showed significantly larger DMPO-OH decay rate, k (min-1). Next, redox related correlation was studied with 9 water samples. A strong correlation between the hardness of water and the amount of residue after lyophilization of each water sample was demonstrated. Significant correlations were observed between X-ray-induced •OH generation and pH of the water sample. Another significant correlation was also observed between free radical-reducing ability and 1 minus the ratio of hardness/residue content (1-H/R value) of the sample water, which is a value indicating a ratio of mineral contents other than (Ca) and magnesium (Mg) in the water sample. No notable correlations were recognized among other factors, such as correlation between DMPO-OH generation C0int and residue weight, correlation between DMPO-OH decay rate and pH, and correlation between DMPO-OH decay rate and residue weight

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