| 摘要 |
PROBLEM TO BE SOLVED: To provide a simple method of determing an antioxidant potential, capable of easily determining whether the antioxidant potential is strong or weak (including existence), relatively from the contrast of strong or weak state (including existence) of the antioxidant potential of a test substance with unknown antioxidant potential with a control test substances with known antioxidant potential (for example, tap water (without antioxidant potential), L-ascorbic acid (vitamin C) aqueous solution (with antioxidant potential) and the like), without being restricted by a reaction temperature, and even in aqueous solution. SOLUTION: Under the presence of photocatalyst absorbing light to generate active oxygen species, the ultraviolet ray is irradiated to mixed liquor containing the test substance with unknown antioxidant potential and a substance to be decolorized by the active oxygen species during a fixed time to measure degree of decoloring of the mixed liquor at that point, and, by contrasting the present degree of decoloring with the degree of decoloring of mixed liquor to test substance test substances with known antioxidant potential measured in a similar manner as ones, strong and weak can be determined of antioxidant potential. COPYRIGHT: (C)2011,JPO&INPIT
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