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Microbial community dynamics reflect reactor stability during the anaerobic digestion of a very high strength and sulfate-rich vinasse

Janet Jimenez, Ernesto L. Barrera, Jo De Vrieze UGent, Nico Boon UGent, Steven De Meester UGent, Henri Spanjers, Osvaldo Romero Romero and Jo Dewulf UGent (2018) JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY. 93(4). p.975-984
abstract
BACKGROUND: Microbial community dynamics during the anaerobic digestion of vinasse has been little studied. However, having knowledge about it is essential for early detection of reactor operational difficulties to apply preventive actions. This research studies the microbial community dynamics in the anaerobic digestion of vinasse, linking to experimental observations about product yields and organic matter degradation. RESULTS: Methane and sulfide yields decreased with increasing SO42-/COD ratio, while the fraction of organic matter degraded by sulfate reducing bacteria increased from 4.5 +/- 0.3% to 27.1 +/- 0.6%. The archaeal community showed that acetoclastic Methanosaetaceae were little affected by the increase of the SO42-/COD ratio, in contrast to the Methanomicrobiales and Methanobacteriales population, which decreased during the experiment. The total bacterial diversity was influenced mainly by substrate composition, showing that the increase of the SO42-/COD ratio above 0.10 shifted the bacterial community to a lower richness. CONCLUSION: These results provide knowledge on the dynamics of the microbial communities, which can be useful to control the anaerobic digestion of sulfate-rich vinasses, showing that reactor stability equates to the higher ratios between total methanogens and total bacteria gene copy numbers, whereas operational difficulties can be associated to lower bacterial richness and higher community organization. (C) 2017 Society of Chemical Industry.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
journal title
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
volume
93
issue
4
pages
975 - 984
Web of Science type
J
Web of Science id
000426859900006
ISSN
0268-2575
1097-4660
DOI
10.1002/jctb.5449
UGent publication?
yes
classification
U
id
8562243
handle
http://hdl.handle.net/1854/LU-8562243
date created
2018-05-18 11:34:12
date last changed
2018-05-18 11:34:18
@article{8562243,
  abstract     = {BACKGROUND: Microbial community dynamics during the anaerobic digestion of vinasse has been little studied. However, having knowledge about it is essential for early detection of reactor operational difficulties to apply preventive actions. This research studies the microbial community dynamics in the anaerobic digestion of vinasse, linking to experimental observations about product yields and organic matter degradation. RESULTS: Methane and sulfide yields decreased with increasing SO42-/COD ratio, while the fraction of organic matter degraded by sulfate reducing bacteria increased from 4.5 +/- 0.3\% to 27.1 +/- 0.6\%. The archaeal community showed that acetoclastic Methanosaetaceae were little affected by the increase of the SO42-/COD ratio, in contrast to the Methanomicrobiales and Methanobacteriales population, which decreased during the experiment. The total bacterial diversity was influenced mainly by substrate composition, showing that the increase of the SO42-/COD ratio above 0.10 shifted the bacterial community to a lower richness. CONCLUSION: These results provide knowledge on the dynamics of the microbial communities, which can be useful to control the anaerobic digestion of sulfate-rich vinasses, showing that reactor stability equates to the higher ratios between total methanogens and total bacteria gene copy numbers, whereas operational difficulties can be associated to lower bacterial richness and higher community organization. (C) 2017 Society of Chemical Industry.},
  author       = {Jimenez, Janet and Barrera, Ernesto L. and De Vrieze, Jo and Boon, Nico and De Meester, Steven and Spanjers, Henri and Romero Romero, Osvaldo and Dewulf, Jo},
  issn         = {0268-2575},
  journal      = {JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY},
  number       = {4},
  pages        = {975--984},
  title        = {Microbial community dynamics reflect reactor stability during the anaerobic digestion of a very high strength and sulfate-rich vinasse},
  url          = {http://dx.doi.org/10.1002/jctb.5449},
  volume       = {93},
  year         = {2018},
}

Chicago
Jimenez, Janet, Ernesto L. Barrera, Jo De Vrieze, Nico Boon, Steven De Meester, Henri Spanjers, Osvaldo Romero Romero, and Jo Dewulf. 2018. “Microbial Community Dynamics Reflect Reactor Stability During the Anaerobic Digestion of a Very High Strength and Sulfate-rich Vinasse.” Journal of Chemical Technology and Biotechnology 93 (4): 975–984.
APA
Jimenez, J., Barrera, E. L., De Vrieze, J., Boon, N., De Meester, S., Spanjers, H., Romero Romero, O., et al. (2018). Microbial community dynamics reflect reactor stability during the anaerobic digestion of a very high strength and sulfate-rich vinasse. JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY, 93(4), 975–984.
Vancouver
1.
Jimenez J, Barrera EL, De Vrieze J, Boon N, De Meester S, Spanjers H, et al. Microbial community dynamics reflect reactor stability during the anaerobic digestion of a very high strength and sulfate-rich vinasse. JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY. 2018;93(4):975–84.
MLA
Jimenez, Janet, Ernesto L. Barrera, Jo De Vrieze, et al. “Microbial Community Dynamics Reflect Reactor Stability During the Anaerobic Digestion of a Very High Strength and Sulfate-rich Vinasse.” JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY 93.4 (2018): 975–984. Print.