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Acid tolerance response (ATR) of microbial communities during the enhanced biohydrogen process via cascade acid stress
- Source :
- Bioresource technology. 155
- Publication Year :
- 2013
-
Abstract
- Enhanced biohydrogen production via cascade acid stress on microbial communities, structure patterns of the microbial communities revealed by PLFAs, and the succession of biohydrogen related species against cascade acid stress were all investigated. It was found that hydrogen production could be improved from 48.7 to 79.4 mL/gVS after cascade acid stress. In addition, the Gram negative (G−) bacteria were found to be more tolerant to organic acids than those of the Gram positive (G+) bacteria, regardless of the dominance of G+ bacteria within the microbial communities. Moreover, Clostridium butyricum, Clostridium aciditolerans and Azospira oryzae, were proved to be enriched, and then might play indispensable roles for the enhanced biohydrogen production after cascade acid stress, as which were responsible for the biohydrogen accumulation, acid tolerance and nitrogen removal, respectively.
- Subjects :
- Environmental Engineering
chemistry.chemical_element
Bioengineering
Polymerase Chain Reaction
Mass Spectrometry
Bioreactors
Bioenergy
Azospira oryzae
Biohydrogen
Waste Management and Disposal
Clostridium butyricum
Gram
Hydrogen production
DNA Primers
biology
Renewable Energy, Sustainability and the Environment
Denaturing Gradient Gel Electrophoresis
General Medicine
biology.organism_classification
Nitrogen
chemistry
Biochemistry
Biofuels
Acids
Bacteria
Hydrogen
Subjects
Details
- ISSN :
- 18732976
- Volume :
- 155
- Database :
- OpenAIRE
- Journal :
- Bioresource technology
- Accession number :
- edsair.doi.dedup.....b3230412f64bcc24778d1af6cb1e9a91