Fluxes in PHA-storing microbial communities during enrichment and biopolymer accumulation processes
Description
The use of mixed microbial cultures for the production of polyhydroxyalkanoates (PHAs) is emerging as a viable technology. In this study, 16S rRNA gene amplicon pyrosequencing was used to analyse fluctuations in populations over a 63-day period within a PHA-storing mixed microbial community enriched on fermented whey permeate. This community was dominated by the genera Flavisolibacter and Zoogloea as well as an unidentified organism belonging to the phylum Bacteroidetes. The population was observed to cycle through an increase in Zoogloea followed by a return to a community composition similar to the initial one (highly enriched in Flavisolibacter). It was found that the PHA accumulation capacity of the community was robust to population flux during enrichment and even PHA accumulation, with final polymer composition dependent on the overall proportion of acetic to propionic acids in the feed. This community adaptation suggests that mixed culture PHA production is a robust process.
Impact and interest:
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| ID Code: | 243309 | ||
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| Item Type: | Contribution to Journal (Journal Article) | ||
| Refereed: | Yes | ||
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| Additional Information: | Acknowledgements: The authors would like to acknowledge the Australian Research Council for funding this work through project LP0990917. The authors also thank AnoxKaldnes Sweden for funding through grant ARC LP0990917 , and acknowledge gratefully the support provided by Lamija Karabegovic and Anton Karlsson in helping with the running of the pilot plant, accumulation studies and sample analysis. | ||
| Measurements or Duration: | 12 pages | ||
| DOI: | 10.1016/j.nbt.2015.07.007 | ||
| ISSN: | 1871-6784 | ||
| Pure ID: | 146554999 | ||
| Funding Information: | The authors would like to acknowledge the Australian Research Council for funding this work through project LP0990917. The authors also thank AnoxKaldnes Sweden for funding through grant ARC LP0990917 , and acknowledge gratefully the support provided by Lamija Karabegovic and Anton Karlsson in helping with the running of the pilot plant, accumulation studies and sample analysis. | ||
| Copyright Owner: | 2015 Elsevier B.V. | ||
| Copyright Statement: | This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the document is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recognise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to qut.copyright@qut.edu.au | ||
| Deposited On: | 04 Oct 2023 01:00 | ||
| Last Modified: | 01 Mar 2024 22:05 |
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