Abstract
A novel method for measuring the kinetics of a subgroup of organisms growing in mixed culture was used to measure the kinetics of propionate-using organisms in a mixed-population anaerobic digester. It was shown that there are at least two subgroups of propionate-using organisms with distinctly different growth kinetics. Both subgroups could grow without reducing sulfate. The slower-growing subgroup had a Ks of 11 mg/liter and a mumax of 0.0054 h-1 which is similar to the mumax reported for Syntrophobacter wolinii. The faster-growing group had a mumax of 0.050 h-1 and a Ks of 330 mg/liter. The slower-growing group was inhibited by a pH shock from 7.0 to 6.0, whereas the faster-growing group was less sensitive to the pH shock.
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Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Boone D. R., Bryant M. P. Propionate-Degrading Bacterium, Syntrophobacter wolinii sp. nov. gen. nov., from Methanogenic Ecosystems. Appl Environ Microbiol. 1980 Sep;40(3):626–632. doi: 10.1128/aem.40.3.626-632.1980. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Boone D. R. Terminal reactions in the anaerobic digestion of animal waste. Appl Environ Microbiol. 1982 Jan;43(1):57–64. doi: 10.1128/aem.43.1.57-64.1982. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Kaspar H. F., Wuhrmann K. Kinetic parameters and relative turnovers of some important catabolic reactions in digesting sludge. Appl Environ Microbiol. 1978 Jul;36(1):1–7. doi: 10.1128/aem.36.1.1-7.1978. [DOI] [PMC free article] [PubMed] [Google Scholar]