Absorption and Metabolism of Bisphenol A, a Possible Endocrine Disruptor, in the Aquatic Edible Plant, Water Convolvulus (Ipomoea aquatica)

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  • NOUREDDIN M. Imadeddin
    Department of Biochemistry and Food Science, Faculty of Agriculture, Kagawa University
  • FURUMOTO Toshio
    Department of Biochemistry and Food Science, Faculty of Agriculture, Kagawa University
  • ISHIDA Yutaka
    Biotechnology Department, Shikoku Research Institute, Inc.
  • FUKUI Hiroshi
    Department of Biochemistry and Food Science, Faculty of Agriculture, Kagawa University

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  • Absorption and Metabolism of Bisphenol A, a Possible Endocrine Disruptor, in the Aquatic Edible Plant, Water Convolvulus (<i>Ipomoea aquatica</i>)

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Abstract

Water convolvulus, a vegetable, absorbed bisphenol A (BPA), an endocrine disruptor, from the medium. One week later, no BPA could be detected in the plant, indicating that BPA had been metabolized in the plant. BPA monoglucoside was detected as the BPA base at ca. 10% in the roots, some in the stems, but none in the leaves. 2H-NMR analyses of MeOH extracts and hydrolyzates of the plant treated with BPA-d16 showed the presence of metabolites (ca. 7% and 26%, respectively, as BPA equivalents) other than the glucoside. Over 50% of BPA might be polymerized and/or tightly bound in the plant residues.

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