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Wojcieszak M, Pyzik A, Poszytek K, et al. Adaptation of Methanogenic Inocula to Anaerobic Digestion of Maize Silage. Front Microbiol. 2017;8:1881doi: 10.3389/fmicb.2017.01881.
Wojcieszak, M., Pyzik, A., Poszytek, K., Krawczyk, P. S., Sobczak, A., Lipinski, L., Roubinek, O., Palige, J., Sklodowska, A., & Drewniak, L. (2017). Adaptation of Methanogenic Inocula to Anaerobic Digestion of Maize Silage. Frontiers in microbiology, 81881. https://doi.org/10.3389/fmicb.2017.01881
Wojcieszak, Martyna, et al. "Adaptation of Methanogenic Inocula to Anaerobic Digestion of Maize Silage." Frontiers in microbiology vol. 8 (2017): 1881. doi: https://doi.org/10.3389/fmicb.2017.01881
Wojcieszak M, Pyzik A, Poszytek K, Krawczyk PS, Sobczak A, Lipinski L, Roubinek O, Palige J, Sklodowska A, Drewniak L. Adaptation of Methanogenic Inocula to Anaerobic Digestion of Maize Silage. Front Microbiol. 2017 Sep 28;8:1881. doi: 10.3389/fmicb.2017.01881. eCollection 2017. PMID: 29033919; PMCID: PMC5625012.
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Front Microbiol. 2017 Sep 28;8:1881. doi: 10.3389/fmicb.2017.01881. eCollection 2017.

Adaptation of Methanogenic Inocula to Anaerobic Digestion of Maize Silage.

Frontiers in microbiology

Martyna Wojcieszak, Adam Pyzik, Krzysztof Poszytek, Pawel S Krawczyk, Adam Sobczak, Leszek Lipinski, Otton Roubinek, Jacek Palige, Aleksandra Sklodowska, Lukasz Drewniak

Affiliations

  1. Laboratory of Environmental Pollution Analysis, Faculty of Biology, University of Warsaw, Warsaw, Poland.
  2. Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland.
  3. Institute of Genetics and Biotechnology, Faculty of Biology, University of Warsaw, Warsaw, Poland.
  4. Institute of Nuclear Chemistry and Technology, Warsaw, Poland.

PMID: 29033919 PMCID: PMC5625012 DOI: 10.3389/fmicb.2017.01881

Abstract

A well-balanced microbial consortium is crucial for efficient biogas production. In turn, one of a major factor that influence on the structure of anaerobic digestion (AD) consortium is a source of microorganisms which are used as an inoculum. This study evaluated the influence of inoculum sources (with various origin) on adaptation of a biogas community and the efficiency of the biomethanization of maize silage. As initial inocula for AD of maize silage the samples from: (i) an agricultural biogas plant (ABP) which utilizes maize silage as a main substrate, (ii) cattle slurry (CS), which contain elevated levels of lignocelluloses materials, and (iii) raw sewage sludge (RSS) with low content of plant origin materials were used. The adaptation of methanogenic consortia was monitored during a series of passages, and the functionality of the adapted consortia was verified through start-up operation of AD in two-stage reactors. During the first stages of the adaptation phase, methanogenic consortia occurred very slowly, and only after several passages did the microbial community adapts to allow production of biogas with high methane content. The ABP consortium revealed highest biogas production in the adaptation and in the start-up process. The biodiversity dynamics monitored during adaptation and start-up process showed that community profile changed in a similar direction in three studied consortia. Native communities were very distinct to each other, while at the end of the Phase II of the start-up process microbial diversity profile was similar in all consortia. All adopted bacterial communities were dominated by representatives of

Keywords: anaerobic digestion; biodiversity dynamics; inoculum source; maize silage; methanogenic consortia

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