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Paper | Regular issue | Vol 96, No. 7, 2018, pp.1216-1225
Published online, 28th June, 2018
DOI: 10.3987/COM-18-13920
Construction of PQQ-Enzyme Multi-Immobilized Electrodes for Electrocatalytic Reduction of Carbonyl Compounds

Yoshitomo Kashiwagi,* Tetsuya Ono, Kentaro Yoshida, Toshinori Ito, and Nobuki Sakurai*

*School of Pharmaceutical Sciences, Ohu University, 31-1 Misumido, Tomita-machi, Koriyama, Fukushima 963-8611, Japan


A thin poly(arylamine) (PAA) and poly(acrylic acid) (PAAc) layers-coated graphite felt (GF) electrode immobilizing all mediation components of pyrroloquinolinequinone (PQQ), diaphorase (Dp), oxidized nicotinamide adenine dinucleotide (NAD+) and alcohol dehydrogenase (ADH) to construct a complete bioelectrochemical reactor was prepared and applied to electrocatalytic reduction of carbonyl compounds in a phosphate buffer at constant potential of –0.65 V vs. Ag/AgCl. The carbonyl compounds were reduced to the corresponding alcohols with high current efficiency (97.2 – 100%) and high yield (97.4 – 100%), respectively.