Removal Behavior of Protein Adsorbed on Metal Surface by H<SUB>2</SUB>O<SUB>2</SUB>-Electrolysis Treatment

• Imamura Koreyoshi

  Department of Bioscience and Biotechnology, Okayama University, Japan

• Watanabe Ippei

  Department of Bioscience and Biotechnology, Okayama University, Japan

• Aramoto Yumi

  Department of Bioscience and Biotechnology, Okayama University, Japan

• Sakiyama Takaharu

  Department of Food Science and Technology, Tokyo University of Marine Science and Technology, Japan

• Nakanishi Kazuhiro

  Department of Bioscience and Biotechnology, Okayama University, Japan

抄録

A novel method for generating hydroxyl radicals, ·OH, was developed, by applying slightly negative electric potentials (-0.2 ∼ -0.8 V vs Ag/AgCl) to the surface of a metal in contact with a hydrogen peroxide solution containing a supporting electrolyte. Namely, ·OH radicals are generated at the surface by the electrolysis of hydrogen peroxide according to the equation, H₂O₂ + e- -> ·OH + OH-. In this study, the kinetics of the removal of a model proteinaceous soiling (ß-lactoglobulin, ß-Lg) adsorbed to a stainless steel surface by the H₂O₂-electrolysis treatment were investigated. The rate of removal of the adsorbed ß-Lg from the stainless steel surface during the treatment was monitored in situ by ellipsometry, and the dependencies of the removal rate on H₂O₂ concentration, the electric potential applied to the surface, and the concentration and type of supporting electrolyte were examined.

収録刊行物

• アジア・太平洋化学工学会議発表論文要旨集

  アジア・太平洋化学工学会議発表論文要旨集 2004 (0), 353-353, 2004

  公益社団法人 化学工学会

キーワード

• cleaning
• proteinaceous soil
• hydrogen peroxide
• hydroxyl radical

詳細情報

• CRID: 1390001205728350592
• NII論文ID: 130005052390
• DOI: 10.11491/apcche.2004.0.353.0
• 本文言語コード: en
• データソース種別:
  • JaLC
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可