The effect of storage conditions on microbial community composition and biomethane potential in a biogas starter culture

Verfasser / Beitragende:
[Live Hagen, Vivekanand Vivekanand, Phillip Pope, Vincent Eijsink, Svein Horn]
Ort, Verlag, Jahr:
2015
Enthalten in:
Applied Microbiology and Biotechnology, 99/13(2015-07-01), 5749-5761
Format:
Artikel (online)
ID: 605506019
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024 7 0 |a 10.1007/s00253-015-6623-0  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00253-015-6623-0 
245 0 4 |a The effect of storage conditions on microbial community composition and biomethane potential in a biogas starter culture  |h [Elektronische Daten]  |c [Live Hagen, Vivekanand Vivekanand, Phillip Pope, Vincent Eijsink, Svein Horn] 
520 3 |a A new biogas process is initiated by adding a microbial community, typically in the form of a sample collected from a functional biogas plant. This inoculum has considerable impact on the initial performance of a biogas reactor, affecting parameters such as stability, biogas production yields and the overall efficiency of the anaerobic digestion process. In this study, we have analyzed changes in the microbial composition and performance of an inoculum during storage using barcoded pyrosequencing of bacterial and archaeal 16Sribosomal RNA (rRNA) genes, and determination of the biomethane potential, respectively. The inoculum was stored at room temperature, 4 and −20°C for up to 11months and cellulose was used as a standard substrate to test the biomethane potential. Storage up to 1month resulted in similar final methane yields, but the rate of methane production was reduced by storage at −20°C. Longer storage times resulted in reduced methane yields and slower production kinetics for all storage conditions, with room temperature and frozen samples consistently giving the best and worst performance, respectively. Both storage time and temperature affected the microbial community composition and methanogenic activity. In particular, fluctuations in the relative abundance of Bacteroidetes were observed. Interestingly, a shift from hydrogenotrophic methanogens to methanogens with the capacity to perform acetoclastic methanogensis was observed upon prolonged storage. In conclusion, this study suggests that biogas inocula may be stored up to 1month with low loss of methanogenic activity, and identifies bacterial and archaeal species that are affected by the storage. 
540 |a Springer-Verlag Berlin Heidelberg, 2015 
690 7 |a Inoculum  |2 nationallicence 
690 7 |a Anaerobic digestion  |2 nationallicence 
690 7 |a Methane  |2 nationallicence 
690 7 |a Biogas  |2 nationallicence 
690 7 |a Bioenergy  |2 nationallicence 
690 7 |a Microbial community  |2 nationallicence 
700 1 |a Hagen  |D Live  |u Department of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, P. O. Box 5003, 1432, Ås, Norway  |4 aut 
700 1 |a Vivekanand  |D Vivekanand  |u Department of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, P. O. Box 5003, 1432, Ås, Norway  |4 aut 
700 1 |a Pope  |D Phillip  |u Department of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, P. O. Box 5003, 1432, Ås, Norway  |4 aut 
700 1 |a Eijsink  |D Vincent  |u Department of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, P. O. Box 5003, 1432, Ås, Norway  |4 aut 
700 1 |a Horn  |D Svein  |u Department of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, P. O. Box 5003, 1432, Ås, Norway  |4 aut 
773 0 |t Applied Microbiology and Biotechnology  |d Springer Berlin Heidelberg  |g 99/13(2015-07-01), 5749-5761  |x 0175-7598  |q 99:13<5749  |1 2015  |2 99  |o 253 
856 4 0 |u https://doi.org/10.1007/s00253-015-6623-0  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s00253-015-6623-0  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Hagen  |D Live  |u Department of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, P. O. Box 5003, 1432, Ås, Norway  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Vivekanand  |D Vivekanand  |u Department of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, P. O. Box 5003, 1432, Ås, Norway  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Pope  |D Phillip  |u Department of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, P. O. Box 5003, 1432, Ås, Norway  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Eijsink  |D Vincent  |u Department of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, P. O. Box 5003, 1432, Ås, Norway  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Horn  |D Svein  |u Department of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, P. O. Box 5003, 1432, Ås, Norway  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Applied Microbiology and Biotechnology  |d Springer Berlin Heidelberg  |g 99/13(2015-07-01), 5749-5761  |x 0175-7598  |q 99:13<5749  |1 2015  |2 99  |o 253