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Title (Primary) Variation of the microbial community in thermophilic anaerobic digestion of pig manure mixed with different ratios of rice straw
Author Zhou, S.; Nikolausz, M.; Zhang, J.; Riya, S.; Terada, A.; Hosomi, M.;
Journal Journal of Bioscience and Bioengineering
Year 2016
Department UMB;
Volume 122
Issue 3
Language englisch;
POF III (all) R31; T15;
Keywords Ammonia; Bacterial community; Thermophilic; Hydrogenotrophic methanogen; Terminal restriction fragment-length polymorphisms
UFZ wide themes RU4;
Abstract The effect of pig manure mixed with rice straw on methane yield and the microbial community involved in a thermophilic (55°C) anaerobic digestion process was investigated. Three substrates composed of mixed pig manure and rice straw at different ratios (95:5; 78:22 and 65:35 w/w, which resulted in C/N ratios of 10:1, 20:1 and 30:1) were used for the experiment. The substrate type had a major influence on the total bacterial community, while the methanogens were less affected. The members of the class Clostridia (phylum Firmicutes) were predominant regardless of mixture ratio (C/N ratio), but at species level there was a major difference between the low and high C/N ratio samples. The hydrogenotrophic methanogenic genus of Methanothermobacter was predominant in all samples but higher C/N ratio sequences affiliated to the genus Methanosarcina were also detected. The appearance of Methanosarcina sp. is most likely due to the less inhibition of ammonia during the anaerobic digestion.
ID 17332
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=17332
Zhou, S., Nikolausz, M., Zhang, J., Riya, S., Terada, A., Hosomi, M. (2016):
Variation of the microbial community in thermophilic anaerobic digestion of pig manure mixed with different ratios of rice straw
J. Biosci. Bioeng. 122 (3), 334 - 340