Substrate-Induced Response in Biogas Process Performance and Microbial Community Relates Back to Inoculum Source.

ABSTRACT: This study investigated whether biogas reactor performance, including microbial community development, in response to a change in substrate composition is influenced by initial inoculum source. For the study, reactors previously operated with the same grass⁻manure mixture for more than 120 days and started with two different inocula were used. These reactors initially showed great differences depending on inoculum source, but eventually showed similar performance and overall microbial community structure. At the start of the present experiment, the substrate was complemented with milled feed wheat, added all at once or divided into two portions. The starting hypothesis was that process performance depends on initial inoculum source and microbial diversity, and thus that reactor performance

SUBMITTER: Liu T 

PROVIDER: S-EPMC6163493 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature