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Effect of tungstate on acetate and ethanol production by the electrosynthetic bacterium Sporomusa ovata

Overview of attention for article published in Biotechnology for Biofuels, August 2016
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About this Attention Score

  • Above-average Attention Score compared to outputs of the same age (58th percentile)
  • Good Attention Score compared to outputs of the same age and source (75th percentile)

Mentioned by

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4 tweeters

Citations

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44 Dimensions

Readers on

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108 Mendeley
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Title
Effect of tungstate on acetate and ethanol production by the electrosynthetic bacterium Sporomusa ovata
Published in
Biotechnology for Biofuels, August 2016
DOI 10.1186/s13068-016-0576-0
Pubmed ID
Authors

Fariza Ammam, Pier-Luc Tremblay, Dawid M. Lizak, Tian Zhang

Abstract

Microbial electrosynthesis (MES) and gas fermentation are bioenergy technologies in which a microbial catalyst reduces CO2 into organic carbon molecules with electrons from the cathode of a bioelectrochemical system or from gases such as H2. The acetogen Sporomusa ovata has the capacity of reducing CO2 into commodity chemicals by both gas fermentation and MES. Acetate is often the only product generated by S. ovata during autotrophic growth. In this study, trace elements in S. ovata growth medium were optimized to improve MES and gas fermentation productivity. Augmenting tungstate concentration resulted in a 2.9-fold increase in ethanol production by S. ovata during H2:CO2-dependent growth. It also promoted electrosynthesis of ethanol in a S. ovata-driven MES reactor and increased acetate production 4.4-fold compared to unmodified medium. Furthermore, fatty acids propionate and butyrate were successfully converted to their corresponding alcohols 1-propanol and 1-butanol by S. ovata during gas fermentation. Increasing tungstate concentration enhanced conversion efficiency for both propionate and butyrate. Gene expression analysis suggested that tungsten-containing aldehyde ferredoxin oxidoreductases (AORs) and a tungsten-containing formate dehydrogenase (FDH) were involved in the improved biosynthesis of acetate, ethanol, 1-propanol, and 1-butanol. AORs and FDH contribute to the fatty acids re-assimilation pathway and the Wood-Ljungdahl pathway, respectively. This study presented here shows that optimization of microbial catalyst growth medium can improve productivity and lead to the biosynthesis of different products by gas fermentation and MES. It also provides insights on the metabolism of biofuels production in acetogens and demonstrates that S. ovata has an important untapped metabolic potential for the production of other chemicals than acetate via CO2-converting bioprocesses including MES.

Twitter Demographics

The data shown below were collected from the profiles of 4 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 108 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
New Zealand 1 <1%
Denmark 1 <1%
Germany 1 <1%
Unknown 105 97%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 29 27%
Student > Master 18 17%
Researcher 17 16%
Student > Bachelor 14 13%
Student > Doctoral Student 5 5%
Other 8 7%
Unknown 17 16%
Readers by discipline Count As %
Biochemistry, Genetics and Molecular Biology 19 18%
Environmental Science 18 17%
Agricultural and Biological Sciences 16 15%
Engineering 10 9%
Chemical Engineering 8 7%
Other 11 10%
Unknown 26 24%

Attention Score in Context

This research output has an Altmetric Attention Score of 3. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 11 August 2016.
All research outputs
#8,102,063
of 15,152,084 outputs
Outputs from Biotechnology for Biofuels
#514
of 1,147 outputs
Outputs of similar age
#108,314
of 266,620 outputs
Outputs of similar age from Biotechnology for Biofuels
#2
of 8 outputs
Altmetric has tracked 15,152,084 research outputs across all sources so far. This one is in the 46th percentile – i.e., 46% of other outputs scored the same or lower than it.
So far Altmetric has tracked 1,147 research outputs from this source. They receive a mean Attention Score of 4.4. This one has gotten more attention than average, scoring higher than 54% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 266,620 tracked outputs that were published within six weeks on either side of this one in any source. This one has gotten more attention than average, scoring higher than 58% of its contemporaries.
We're also able to compare this research output to 8 others from the same source and published within six weeks on either side of this one. This one has scored higher than 6 of them.