Upgrade from aerated static pile to agitated bed systems promotes lignocellulose degradation in large-scale composting through enhanced microbial functional diversity.
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| Title: | Upgrade from aerated static pile to agitated bed systems promotes lignocellulose degradation in large-scale composting through enhanced microbial functional diversity. |
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| Authors: | Yu, Hanxia1,2,3 (AUTHOR), Xiao, Haoyan1,2 (AUTHOR), Deng, Huiyu1 (AUTHOR), Frew, Adam2 (AUTHOR), Hossain, Md. Akhter2 (AUTHOR), Tan, Wenbing1,3 (AUTHOR) wenbingtan@126.com, Xi, Beidou3 (AUTHOR) |
| Source: | Journal of Environmental Sciences (Elsevier). Oct2024, Vol. 144, p55-66. 12p. |
| Subject Terms: | *Composting, *Sustainable development, *Sustainability, Microbial diversity, Hemicellulose, Lignocellulose, Lignocellulose biodegradation |
| Abstract: | • A metaproteomics-based comparison of microbial degradation from ASP to AB was conducted. • Upgrading from ASP to AB increased lignocellulose degradation rates by 18.49-46.52%. • The upgrade from ASP to AB improved diversity of CAZyme-producing microbes. • AB but not ASP can produce the key enzyme for acetate conversion. • AB was superior to ASP for compost decomposition with higher cellulose. Composting presents a viable management solution for lignocellulose-rich municipal solid waste. However, our understanding about the microbial metabolic mechanisms involved in the biodegradation of lignocellulose, particularly in industrial-scale composting plants, remains limited. This study employed metaproteomics to compare the impact of upgrading from aerated static pile (ASP) to agitated bed (AB) systems on physicochemical parameters, lignocellulose biodegradation, and microbial metabolic pathways during large-scale biowaste composting process, marking the first investigation of its kind. The degradation rates of lignocellulose including cellulose, hemicellulose, and lignin were significantly higher in AB (8.21%-32.54%, 10.21%-39.41%, and 6.21%-26.78%) than those (5.72%-23.15%, 7.01%-33.26%, and 4.79%-19.76%) in ASP at three thermal stages, respectively. The AB system in comparison to ASP increased the carbohydrate-active enzymes (CAZymes) abundance and production of the three essential enzymes required for lignocellulose decomposition involving a mixture of bacteria and fungi (i.e., Actinobacteria, Bacilli, Sordariomycetes and Eurotiomycetes). Conversely, ASP primarily produced exoglucanase and β-glucosidase via fungi (i.e., Ascomycota). Moreover, AB effectively mitigated microbial stress caused by acetic acid accumulation by regulating the key enzymes involved in acetate conversion, including acetyl-coenzyme A synthetase and acetate kinase. Overall, the AB upgraded from ASP facilitated the lignocellulose degradation and fostered more diverse functional microbial communities in large-scale composting. Our findings offer a valuable scientific basis to guide the engineering feasibility and environmental sustainability for large-scale industrial composting plants for treating lignocellulose-rich waste. These findings have important implications for establishing green sustainable development models (e.g., a circular economy based on material recovery) and for achieving sustainable development goals. [Display omitted] [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Environmental Sciences (Elsevier) is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | GreenFILE |
| FullText | Text: Availability: 0 |
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| Header | DbId: 8gh DbLabel: GreenFILE An: 177456886 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Upgrade from aerated static pile to agitated bed systems promotes lignocellulose degradation in large-scale composting through enhanced microbial functional diversity. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Yu%2C+Hanxia%22">Yu, Hanxia</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xiao%2C+Haoyan%22">Xiao, Haoyan</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Deng%2C+Huiyu%22">Deng, Huiyu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Frew%2C+Adam%22">Frew, Adam</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hossain%2C+Md%2E+Akhter%22">Hossain, Md. Akhter</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tan%2C+Wenbing%22">Tan, Wenbing</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<i> wenbingtan@126.com</i><br /><searchLink fieldCode="AR" term="%22Xi%2C+Beidou%22">Xi, Beidou</searchLink><relatesTo>3</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Environmental+Sciences+%28Elsevier%29%22">Journal of Environmental Sciences (Elsevier)</searchLink>. Oct2024, Vol. 144, p55-66. 12p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22Composting%22">Composting</searchLink><br />*<searchLink fieldCode="DE" term="%22Sustainable+development%22">Sustainable development</searchLink><br />*<searchLink fieldCode="DE" term="%22Sustainability%22">Sustainability</searchLink><br /><searchLink fieldCode="DE" term="%22Microbial+diversity%22">Microbial diversity</searchLink><br /><searchLink fieldCode="DE" term="%22Hemicellulose%22">Hemicellulose</searchLink><br /><searchLink fieldCode="DE" term="%22Lignocellulose%22">Lignocellulose</searchLink><br /><searchLink fieldCode="DE" term="%22Lignocellulose+biodegradation%22">Lignocellulose biodegradation</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: • A metaproteomics-based comparison of microbial degradation from ASP to AB was conducted. • Upgrading from ASP to AB increased lignocellulose degradation rates by 18.49-46.52%. • The upgrade from ASP to AB improved diversity of CAZyme-producing microbes. • AB but not ASP can produce the key enzyme for acetate conversion. • AB was superior to ASP for compost decomposition with higher cellulose. Composting presents a viable management solution for lignocellulose-rich municipal solid waste. However, our understanding about the microbial metabolic mechanisms involved in the biodegradation of lignocellulose, particularly in industrial-scale composting plants, remains limited. This study employed metaproteomics to compare the impact of upgrading from aerated static pile (ASP) to agitated bed (AB) systems on physicochemical parameters, lignocellulose biodegradation, and microbial metabolic pathways during large-scale biowaste composting process, marking the first investigation of its kind. The degradation rates of lignocellulose including cellulose, hemicellulose, and lignin were significantly higher in AB (8.21%-32.54%, 10.21%-39.41%, and 6.21%-26.78%) than those (5.72%-23.15%, 7.01%-33.26%, and 4.79%-19.76%) in ASP at three thermal stages, respectively. The AB system in comparison to ASP increased the carbohydrate-active enzymes (CAZymes) abundance and production of the three essential enzymes required for lignocellulose decomposition involving a mixture of bacteria and fungi (i.e., Actinobacteria, Bacilli, Sordariomycetes and Eurotiomycetes). Conversely, ASP primarily produced exoglucanase and β-glucosidase via fungi (i.e., Ascomycota). Moreover, AB effectively mitigated microbial stress caused by acetic acid accumulation by regulating the key enzymes involved in acetate conversion, including acetyl-coenzyme A synthetase and acetate kinase. Overall, the AB upgraded from ASP facilitated the lignocellulose degradation and fostered more diverse functional microbial communities in large-scale composting. Our findings offer a valuable scientific basis to guide the engineering feasibility and environmental sustainability for large-scale industrial composting plants for treating lignocellulose-rich waste. These findings have important implications for establishing green sustainable development models (e.g., a circular economy based on material recovery) and for achieving sustainable development goals. [Display omitted] [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Environmental Sciences (Elsevier) is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.jes.2023.09.008 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 12 StartPage: 55 Subjects: – SubjectFull: Composting Type: general – SubjectFull: Sustainable development Type: general – SubjectFull: Sustainability Type: general – SubjectFull: Microbial diversity Type: general – SubjectFull: Hemicellulose Type: general – SubjectFull: Lignocellulose Type: general – SubjectFull: Lignocellulose biodegradation Type: general Titles: – TitleFull: Upgrade from aerated static pile to agitated bed systems promotes lignocellulose degradation in large-scale composting through enhanced microbial functional diversity. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Yu, Hanxia – PersonEntity: Name: NameFull: Xiao, Haoyan – PersonEntity: Name: NameFull: Deng, Huiyu – PersonEntity: Name: NameFull: Frew, Adam – PersonEntity: Name: NameFull: Hossain, Md. Akhter – PersonEntity: Name: NameFull: Tan, Wenbing – PersonEntity: Name: NameFull: Xi, Beidou IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 10 Text: Oct2024 Type: published Y: 2024 Identifiers: – Type: issn-print Value: 10010742 Numbering: – Type: volume Value: 144 Titles: – TitleFull: Journal of Environmental Sciences (Elsevier) Type: main |
| ResultId | 1 |
