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Glycerol acts as alternative electron sink during syngas fermentation by thermophilic anaerobe Moorella thermoacetica

Paper ID Volume ID Publish Year Pages File Format Full-Text
20032 43154 2016 6 PDF Available
Title
Glycerol acts as alternative electron sink during syngas fermentation by thermophilic anaerobe Moorella thermoacetica
Abstract

Moorella thermoacetica is an anaerobic thermophilic acetogen that is capable of fermenting sugars, H2/CO2 and syngas (H2/CO). For this reason, this bacterium is potentially useful for biotechnology applications, particularly the production of biofuel from CO2. A soil isolate of M. thermoacetica, strain Y72, produces both ethanol and acetate from H2/CO2; however, the maximum concentrations of these two products are too low to enable commercialization of the syngas fermentation process. In the present study, glycerol was identified as a novel electron sink among the fermentation products of strain Y72. Notably, a 1.5-fold increase in the production of ethanol (1.4 mM) was observed in cultures supplemented with glycerol during syngas fermentation. This discovery is expected to aid in the development of novel methods that allow for the regulation of metabolic pathways to direct and increase the production of desirable fermentative compounds.

Keywords
Anaerobe; Electron sink; Glycerol; Moorella thermoacetica; Syngas; Thermophilic
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Glycerol acts as alternative electron sink during syngas fermentation by thermophilic anaerobe Moorella thermoacetica
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Bioscience and Bioengineering - Volume 121, Issue 3, March 2016, Pages 268–273
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