Impact of crop species on bacterial community structure during anaerobic co-digestion of crops and cow manure
| Autor: | Jaakko A. Puhakka, Katariina E.S. Tolvanen, Hong Wang, Annimari Lehtomäki, Jukka Rintala |
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| Rok vydání: | 2009 |
| Předmět: |
Crops
Agricultural Environmental Engineering Silage Bioengineering complex mixtures Clostridia Bioreactors RNA Ribosomal 16S Animals Anaerobiosis Waste Management and Disposal Phylogeny Electrophoresis Agar Gel Bacteria Base Sequence biology Renewable Energy Sustainability and the Environment fungi technology industry and agriculture food and beverages Bacteroidetes General Medicine Straw equipment and supplies biology.organism_classification Manure Clone Cells Anaerobic digestion Agronomy Cattle Sugar beet Cow dung Polymorphism Restriction Fragment Length |
| Zdroj: | Bioresource Technology. 100:2311-2315 |
| ISSN: | 0960-8524 |
| DOI: | 10.1016/j.biortech.2008.10.040 |
| Popis: | The bacterial communities in three continuously stirred tank reactors co-digesting cow manure with grass silage, oat straw, and sugar beet tops, respectively, were investigated by 16S rRNA gene-based fingerprints and clone libraries. The analyses revealed both clearly distinct and similar phylotypes in the bacterial communities between the reactors. The major groups represented in the three reactors were Clostridia, unclassified Bacteria, and Bacteroidetes. Phylotypes affiliated with Bacilli or Deltaproteobacteria were unique to the sugar beet and straw reactor, respectively. Unclassified Bacteria dominated in sugar beet reactor while in the straw and grass reactor Clostridia was the dominant group. An increase in organic loading rate from 2 to 3kg volatile solids m(-3) d(-1) resulted in larger changes in the bacterial community in the straw compared to grass reactor. The study shed more light on the evolution of bacterial community during anaerobic co-digestion of different crops and manure to methane. |
| Databáze: | OpenAIRE |
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