J. Technology and Education, Vol.20, No.2, pp.65-71(2013)

研究論文

 

バイオ電池の燃料としての木材糖化液の有用性

 

高山勝己^*、松井栄樹、上島晃智

福井工業高等専門学校物質工学科（〒916-8507福井県鯖江市下司町）

*takayama@fukui-nct.ac.jp

Application of wood saccharified liquid as a fuel for the microbial fuel cell

Katsumi TAKAYAMA, Eiki MATSUI, and Akinori UEJIMA

Department of Chemistry & Biology Engineering, Fukui National College of Technology

(Geshi-cho, Sabae-shi, Fukui 916-8507, Japan)

 

 (Received July 18, 2013; Accepted August 23, 2013)

 

Abstract

In this study, a two-compartment prototype microbial fuel cell (MFC) was constructed. For the anode compartment, vitamin K₃ was used as an electron mediator between membrane-bound D-glucose dehydrogenase (GDH) in Escherichia coli cells and the anode electrode. The ferro-ferricyanide redox system was selected for the cathode compartment. We attempted to use a wood saccharified liquid consisting of glucose and xylose as a fuel in the anode compartment. The fuel can be produced by solid acid treatment of wood chips obtained from the sawmill. The open-circuit voltage was 430 mV. The maximum current density of 25 mA cm^-2 has been achieved at 200 mV of the cell voltage under stirring. 

Keywords: Microbial fuel cell, Mediated electron transfer, Wood chips, Saccharification