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Microbial community composition of food waste before anaerobic digestion
Anaerobic digestion is widely used to process and recover value from food waste. Commercial food waste anaerobic digestion facilities seek improvements in process efficiency to enable higher throughput. There is limited information on the composition of microbial communities in food waste prior to d...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10404229/ https://www.ncbi.nlm.nih.gov/pubmed/37543702 http://dx.doi.org/10.1038/s41598-023-39991-w |
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author | Tang, Linjie O’Dwyer, Jack Kimyon, Önder Manefield, Michael J. |
author_facet | Tang, Linjie O’Dwyer, Jack Kimyon, Önder Manefield, Michael J. |
author_sort | Tang, Linjie |
collection | PubMed |
description | Anaerobic digestion is widely used to process and recover value from food waste. Commercial food waste anaerobic digestion facilities seek improvements in process efficiency to enable higher throughput. There is limited information on the composition of microbial communities in food waste prior to digestion, limiting rational exploitation of the catalytic potential of microorganisms in pretreatment processes. To address this knowledge gap, bacterial and fungal communities in food waste samples from a commercial anaerobic digestion facility were characterised over 3 months. The abundance of 16S rRNA bacterial genes was approximately five orders of magnitude higher than the abundance of the fungal intergenic spacer (ITS) sequence, suggesting the numerical dominance of bacteria over fungi in food waste before anaerobic digestion. Evidence for the mass proliferation of bacteria in food waste during storage prior to anaerobic digestion is presented. The composition of the bacterial community shows variation over time, but lineages within the Lactobacillaceae family are consistently dominant. Nitrogen content and pH are correlated to community variation. These findings form a foundation for understanding the microbial ecology of food waste and provide opportunities to further improve the throughput of anaerobic digestion. |
format | Online Article Text |
id | pubmed-10404229 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-104042292023-08-07 Microbial community composition of food waste before anaerobic digestion Tang, Linjie O’Dwyer, Jack Kimyon, Önder Manefield, Michael J. Sci Rep Article Anaerobic digestion is widely used to process and recover value from food waste. Commercial food waste anaerobic digestion facilities seek improvements in process efficiency to enable higher throughput. There is limited information on the composition of microbial communities in food waste prior to digestion, limiting rational exploitation of the catalytic potential of microorganisms in pretreatment processes. To address this knowledge gap, bacterial and fungal communities in food waste samples from a commercial anaerobic digestion facility were characterised over 3 months. The abundance of 16S rRNA bacterial genes was approximately five orders of magnitude higher than the abundance of the fungal intergenic spacer (ITS) sequence, suggesting the numerical dominance of bacteria over fungi in food waste before anaerobic digestion. Evidence for the mass proliferation of bacteria in food waste during storage prior to anaerobic digestion is presented. The composition of the bacterial community shows variation over time, but lineages within the Lactobacillaceae family are consistently dominant. Nitrogen content and pH are correlated to community variation. These findings form a foundation for understanding the microbial ecology of food waste and provide opportunities to further improve the throughput of anaerobic digestion. Nature Publishing Group UK 2023-08-05 /pmc/articles/PMC10404229/ /pubmed/37543702 http://dx.doi.org/10.1038/s41598-023-39991-w Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Tang, Linjie O’Dwyer, Jack Kimyon, Önder Manefield, Michael J. Microbial community composition of food waste before anaerobic digestion |
title | Microbial community composition of food waste before anaerobic digestion |
title_full | Microbial community composition of food waste before anaerobic digestion |
title_fullStr | Microbial community composition of food waste before anaerobic digestion |
title_full_unstemmed | Microbial community composition of food waste before anaerobic digestion |
title_short | Microbial community composition of food waste before anaerobic digestion |
title_sort | microbial community composition of food waste before anaerobic digestion |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10404229/ https://www.ncbi.nlm.nih.gov/pubmed/37543702 http://dx.doi.org/10.1038/s41598-023-39991-w |
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