The close relation between Lactococcus and Methanosaeta is a keystone for stable methane production from molasses wastewater in a UASB reactor

Verfasser / Beitragende:
[Tae Kim, Jeonghee Yun, Kyung-Suk Cho]
Ort, Verlag, Jahr:
2015
Enthalten in:
Applied Microbiology and Biotechnology, 99/19(2015-10-01), 8271-8283
Format:
Artikel (online)
ID: 605498873
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024 7 0 |a 10.1007/s00253-015-6725-8  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00253-015-6725-8 
245 0 4 |a The close relation between Lactococcus and Methanosaeta is a keystone for stable methane production from molasses wastewater in a UASB reactor  |h [Elektronische Daten]  |c [Tae Kim, Jeonghee Yun, Kyung-Suk Cho] 
520 3 |a The up-flow anaerobic sludge blanket (UASB) reactor is a promising method for the treatment of high-strength industrial wastewaters due to advantage of its high treatment capacity and settleable suspended biomass retention. Molasses wastewater as a sugar-rich waste is one of the most valuable raw material for bioenergy production due to its high organic strength and bioavailability. Interpretation for complex interactions of microbial community structures and operational parameters can help to establish stable biogas production. RNA-based approach for biogas production systems is recommended for analysis of functionally active community members which are significantly underestimated. In this study, methane production and active microbial community were characterized in an UASB reactor using molasses wastewater as feedstock. The UASB reactor achieved a stable process performance at an organic loading rate of 1.7~13.8-g chemical oxygen demand (COD,·L−1day−1; 87-95% COD removal efficiencies), and the maximum methane production rate was 4.01L-CH4·at 13.8g-CODL−1day−1. Lactococcus and Methanosaeta were comprised up to 84 and 80% of the active bacterial and archaeal communities, respectively. Network analysis of reactor performance and microbial community revealed that Lactococcus and Methanosaeta were network hub nodes and positively correlated each other. In addition, they were positively correlated with methane production and organic loading rate, and they shared the other microbial hub nodes as neighbors. The results indicate that the close association between Lactococcus and Methanosaeta is responsible for the stable production of methane in the UASB reactor using molasses wastewater. 
540 |a Springer-Verlag Berlin Heidelberg, 2015 
690 7 |a Bioenergy  |2 nationallicence 
690 7 |a Methane  |2 nationallicence 
690 7 |a Molasses wastewater  |2 nationallicence 
690 7 |a Up-flow anaerobic sludge blanket  |2 nationallicence 
690 7 |a Microbial community  |2 nationallicence 
700 1 |a Kim  |D Tae  |u Department of Environmental Science and Engineering, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, 120-750, Seoul, Republic of Korea  |4 aut 
700 1 |a Yun  |D Jeonghee  |u Department of Environmental Science and Engineering, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, 120-750, Seoul, Republic of Korea  |4 aut 
700 1 |a Cho  |D Kyung-Suk  |u Department of Environmental Science and Engineering, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, 120-750, Seoul, Republic of Korea  |4 aut 
773 0 |t Applied Microbiology and Biotechnology  |d Springer Berlin Heidelberg  |g 99/19(2015-10-01), 8271-8283  |x 0175-7598  |q 99:19<8271  |1 2015  |2 99  |o 253 
856 4 0 |u https://doi.org/10.1007/s00253-015-6725-8  |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/s00253-015-6725-8  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Kim  |D Tae  |u Department of Environmental Science and Engineering, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, 120-750, Seoul, Republic of Korea  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Yun  |D Jeonghee  |u Department of Environmental Science and Engineering, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, 120-750, Seoul, Republic of Korea  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Cho  |D Kyung-Suk  |u Department of Environmental Science and Engineering, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, 120-750, Seoul, Republic of Korea  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Applied Microbiology and Biotechnology  |d Springer Berlin Heidelberg  |g 99/19(2015-10-01), 8271-8283  |x 0175-7598  |q 99:19<8271  |1 2015  |2 99  |o 253