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Starchy biomass-powered enzymatic biofuel cell based on amylases and glucose oxidase multi-immobilized bioanode

Paper ID Volume ID Publish Year Pages File Format Full-Text
33339 44971 2013 5 PDF Available
Title
Starchy biomass-powered enzymatic biofuel cell based on amylases and glucose oxidase multi-immobilized bioanode
Abstract

•Three enzymes (glucose oxidase, alpha-amylase and glucoamylase) were co-immobilized on bioanode.•The bioanode can both saccharize and oxidize starchy biomass.•The assembled biofuel cells operated with crude rice as a fuel, and delivered an open circuit voltage of 0.522 V and power density of up to 99.0 μW cm−2.

The present study reports the design of a novel bioanode to directly utilize starch as a fuel in an enzymatic biofuel cell. The enzymatic fuel cell is based on three enzymes (alpha-amylase, glucoamylase and glucose oxidase). The carbon paste electrode containing these three enzymes and tetrathiafulvalene can both saccharize and oxidize starchy biomass. In cyclic voltammetry, catalytic currents were successfully observed with both glucose and starchy white rice used as a substrate. Finally, a membrane-less white rice/O2 biofuel cell was assembled and the electrochemical performance was evaluated. The three enzyme based electrode was used as a bioanode and an immobilized bilirubin oxidase (derived from Myrothecium verrucaria) electrode was used as a biocathode. The biofuel cell delivered an open circuit voltage of 0.522 V and power density of up to 99.0 μW cm−2. Our results show that a readily available fuel can be used for enzymatic fuel cells, and will lead to new designs.

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Starchy biomass-powered enzymatic biofuel cell based on amylases and glucose oxidase multi-immobilized bioanode
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Publisher
Database: Elsevier - ScienceDirect
Journal: New Biotechnology - Volume 30, Issue 5, 25 June 2013, Pages 531–535
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us