A microalgal biomass offers a potential alternative to the @entity2829 silage commonly used in biogas technology. In this study, photoautotrophically grown @entity14944 was used as biogas substrate. This microalga has a low C/N ratio of 8.5 relative to the optimum 20-30. A significant increase in the @entity16764 ion content was not observed. The @entity577 content of the biogas generated from Sc. obliquus proved to be higher than that from @entity2829 silage, but the specific biogas yield was lower. Semi-continuous steady biogas production lasted for 2 months. Because of the thick cell wall of Sc. obliquus, the biomass-degrading microorganisms require additional time to digest its biomass. The @entity577 concentration in the biogas was also high, in co-digestion (i.e., 52-56%) as in alga-fed anaerobic digestion (i.e., 55-62%). These results may be related to the relative predominance of the order Clostridiales in co-digestion and to the more balanced C/N ratio of the mixed algal- @entity2829 biomass. Predominance of the order Methanosarcinales was observed in the domain Archaea, which supported the diversity of metabolic pathways in the process.

Metagenome changes in the mesophilic biogas-producing community during fermentation of the green alga XXXX .

@entity577 :: ('MESH:D008697', 'Chemical') :: ['methane'] @entity14944 :: ('3088', 'Species') :: ['Scenedesmus obliquus'] @entity16764 :: ('MESH:D064751', 'Chemical') :: ['ammonium'] @entity2829 :: ('4577', 'Species') :: ['maize']
@entity14944 :: (3088,Species) :: ['Scenedesmus obliquus']
