Dimerization of Bisphenol A by Hyper Lignin-Degrading Fungus Phanerochaete sordida YK-624 Under Ligninolytic Condition |
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Authors: | Jianqiao Wang Yotaro Yamamoto Hirofumi Hirai Hirokazu Kawagishi |
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Institution: | 1. Graduate School of Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, 422-8529, Japan 2. Department of Applied Biological Chemistry, Faculty of Agriculture, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, 422-8529, Japan
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Abstract: | Bisphenol A (BPA) was treated with hyper lignin-degrading fungus Phanerochaete sordida YK-624 under ligninolytic condition. After preculturing P. sordida YK-624 for 4 days, BPA (final concentration, 1 and 0.1 mM) was added to cultures. Both 1- and 0.1-mM BPA were effectively decreased within a 24-h treatment and two metabolites were detected. Two metabolites (5,5′-bis-1-(4-hydroxy-phenyl)1-methyl-ethyl]-biphenyl-2,2′-diol and 4-(2-(4-hydroxy-phenyl) propan-2-yl)-2-(4-(2-(4-hydroxyphenyl) propan-2-yl) phenoxy)phenol) were identified by ESI–MS and NMR analysis. These results indicated that BPA was oxidized to BPA phenoxy radicals by ligninolytic enzymes and then dimerized at extracellular region. |
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