Mayur Bharat Kurade
2019-12-09T17:11:20Z
2019-12-09T17:11:20Z
2018-10
BIORESOURCE TECHNOLOGY, v. 272, page. 351-359
0960-8524
1873-2976
https://www.sciencedirect.com/science/article/pii/S0960852418314780?via%3Dihub
https://repository.hanyang.ac.kr/handle/20.500.11754/120268
Fats, oil and grease (FOG) are energy-dense wastes that substantially increase biomethane recovery. Shifts in the microbial community during anaerobic co-digestion of FOG was assessed to understand relationships between substrate digestion and microbial adaptations. Excessive addition of FOG inhibited the methanogenic activity during initial phase; however, it enhanced the ultimate methane production by 217% compared to the control. The dominance of Proteobacteria was decreased with a simultaneous increase in Firmicutes, Bacteriodetes, Synergistetes and Euryarchaeota during the co-digestion. A significant increase in Syntrophomonas (0.18-11%), Sporanaerobacter (0.14-6%) and Propionispira (0.02-19%) was observed during co-digestion, which substantiated their importance in acetogenesis. Among methanogenic Archaea, the dominance of Methanosaeta (94%) at the beginning of co-digestion was gradually replaced by Methanosarcina (0.52-95%). The absence/relatively low abundance of syntrophic acetate oxidizers and hydrogenotrophic methanogens, and dominance of acetoclastic methanogens suggested that methane generation during co-digestion of FOG was predominantly conducted through acetoclastic pathway led by Methanosarcina.
The authors thankfully acknowledge the financial support from the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry and Energy (MOTIE) of the Republic of Korea (No. 20163010092250; No. 20173010092470).
en_US
ELSEVIER SCI LTD
Anaerobic co-digestion
Fats, oil and grease (FOG)
High-throughput sequencing
Long-chain fatty acids
Methanosarcina
Methanosaeta
Acetoclastic methanogenesis led by Methanosarcina in anaerobic co-digestion of fats, oil and grease for enhanced production of methane
Article
272
10.1016/j.biortech.2018.10.047
351-359
BIORESOURCE TECHNOLOGY
Kurade, Mayur B.
Saha, Shouvik
Salama, El-Sayed
Patil, Swapnil M.
Govindwar, Sanjay P.
Jeon, Byong-Hun
2018000987
S
INDUSTRY-UNIVERSITY COOPERATION FOUNDATION[S]
RESEARCH INSTITUTE
mayurkurade
J-2758-2014
http://orcid.org/0000-0001-7861-203X