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Use of chitosan for removal of bisphenol a from aqueous solutions through quinone oxidation by polyphenol oxidase
Author(s) -
Kimura Yuji,
Yamamoto Miwa,
Shimazaki Reiko,
Kashiwada Ayumi,
Matsuda Kiyomi,
Yamada Kazunori
Publication year - 2011
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.35079
Subject(s) - chitosan , quinone , polyphenol oxidase , chemistry , aqueous solution , biopolymer , tyrosinase , bisphenol a , nuclear chemistry , polyphenol , organic chemistry , antioxidant , enzyme , polymer , peroxidase , epoxy
Abstract In this study, a combined use of biopolymer chitosan and oxidoreductase polyphenol oxidase (PPO) was applied to the removal of bisphenol A (BPA) as an endocrine disrupting chemical from aqueous solutions. The optimum conditions for the enzymatic quinone oxidation of BPA were determined to be pH 7.0 and 40°C. Quinone derivatives generated were chemisorbed on chitosan beads, and BPA was completely removed at 4–7 h. The removal time was shortened with an increase in the amount of dispersed chitosan beads or the PPO concentration. In addition, the initial velocity of quinone oxidation increased with an increase in the amount of chitosan beads. The use of chitosan in the form of porous beads was more effective than the use of chitosan in the form of solutions or powder. It was found that an important factor for this procedure was a high‐specific surface area of chitosan beads and heterogeneous reaction of quinone derivatives enzymatically generated with chitosan. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012