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Coproduction of acetic acid and electricity by application of microbial fuel cell technology to vinegar fermentation

Paper ID Volume ID Publish Year Pages File Format Full-Text
20625 43183 2013 5 PDF Available
Title
Coproduction of acetic acid and electricity by application of microbial fuel cell technology to vinegar fermentation
Abstract

The coproduction of a useful material and electricity via a novel application of microbial fuel cell (MFC) technology to oxidative fermentation was investigated. We focused on vinegar production, i.e., acetic acid fermentation, as an initial and model useful material that can be produced by oxidative fermentation in combination with MFC technology. The coproduction of acetic acid and electricity by applying MFC technology was successfully demonstrated by the simultaneous progress of acetic acid fermentation and electricity generation through a series of repeated batch fermentations. Although the production rate of acetic acid was very small, it increased with the number of repeated batch fermentations that were conducted. We obtained nearly identical (73.1%) or larger (89.9%) acetic acid yields than that typically achieved by aerated fermentation (75.8%). The open-cycle voltages measured before and after fermentation increased with the total fermentation time and reached a maximum value of 0.521 V prior to the third batch fermentation. The maximum current and power densities measured in this study (19.1 μA/cm2 and 2.47 μW/cm2, respectively) were obtained after the second batch fermentation.

Keywords
Microbial fuel cell; Coproduction; Acetic acid; Vinegar; Acetobacter aceti
First Page Preview
Coproduction of acetic acid and electricity by application of microbial fuel cell technology to vinegar fermentation
Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Bioscience and Bioengineering - Volume 116, Issue 2, August 2013, Pages 219–223
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering