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Coproduction of acetic acid and electricity by application of microbial fuel cell technology to vinegar fermentation
- Source :
- Journal of bioscience and bioengineering. 116(2)
- Publication Year :
- 2012
-
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.
- Subjects :
- Microbial fuel cell
Batch fermentation
Bioelectric Energy Sources
Bioengineering
Applied Microbiology and Biotechnology
Acetic acid
chemistry.chemical_compound
Electricity
Acetobacter
Mixed acid fermentation
Acetobacter aceti
Acetic Acid
biology
business.industry
food and beverages
Pulp and paper industry
biology.organism_classification
Biotechnology
carbohydrates (lipids)
chemistry
Fermentation
Aeration
business
Production rate
Subjects
Details
- ISSN :
- 13474421
- Volume :
- 116
- Issue :
- 2
- Database :
- OpenAIRE
- Journal :
- Journal of bioscience and bioengineering
- Accession number :
- edsair.doi.dedup.....6fe17c92319b64dc6bcfba43c23d0e51