Improved methane removal in exhaust gas from biogas upgrading process using immobilized methane-oxidizing bacteria

Sun, Meihao; Yang, Zhiman; Fu, Shan-Fei; Fan, Xiaolei; Guo, Rongbo

doi:10.1016/j.biortech.2018.02.020

Cited by 28 publications

(6 citation statements)

References 37 publications

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“…Concerning the second most abundant member of the specialized community, Methylophilus genera of type II methanotrophs were enriched at similarly low ammonium concentrations (López et al, 2019). Notably, a mixed culture enriched in Methylomonas and Methylophilus genera exhibited the highest methane oxidation rate compared to other wild MOB consortia (Sun et al, 2018). Comparative genome analysis showed that only Methylomonas methanica genome contains genes encoding sMMO and pMMO (i.e.…”

Section: Effect Of Copper On Mob Growthmentioning

confidence: 99%

Proteinaceous methanotrophs for feed additive using biowaste as carbon and nutrients source

Tsapekos

Zhu

Pallis

et al. 2020

Bioresource Technology

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Section: Effect Of Copper On Mob Growthmentioning

confidence: 99%

Proteinaceous methanotrophs for feed additive using biowaste as carbon and nutrients source

Tsapekos

Zhu

Pallis

et al. 2020

Bioresource Technology

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“…In environmental carbon flux, CH 4 -oxidizing bacteria are key regulators of CH 4 abatement ( Hanson and Hanson, 1996 ; Saarela et al, 2020 ). Due to its abundance and potential as a sustainable carbon feedstock, the development of biological processes for CH 4 conversion to bio-based chemicals/liquid fuels is a promising and attractive research area ( López et al, 2013 ; Sun et al, 2018 ; Liu et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Batch Experiments Demonstrating a Two-Stage Bacterial Process Coupling Methanotrophic and Heterotrophic Bacteria for 1-Alkene Production From Methane

et al. 2022

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Methane (CH4) is a sustainable carbon feedstock for value-added chemical production in aerobic CH4-oxidizing bacteria (methanotrophs). Under substrate-limited (e.g., oxygen and nitrogen) conditions, CH4 oxidation results in the production of various short-chain organic acids and platform chemicals. These CH4-derived products could be broadened by utilizing them as feedstocks for heterotrophic bacteria. As a proof of concept, a two-stage system for CH4 abatement and 1-alkene production was developed in this study. Type I and Type II methanotrophs, Methylobacter tundripaludum SV96 and Methylocystis rosea SV97, respectively, were investigated in batch tests under different CH4 and air supplementation schemes. CH4 oxidation under either microaerobic or aerobic conditions induced the production of formate, acetate, succinate, and malate in M. tundripaludum SV96, accounting for 4.8–7.0% of consumed carbon from CH4 (C-CH4), while M. rosea SV97 produced the same compounds except for malate, and with lower efficiency than M. tundripaludum SV96, accounting for 0.7–1.8% of consumed C-CH4. For the first time, this study demonstrated the use of organic acid-rich spent media of methanotrophs cultivating engineered Acinetobacter baylyi ADP1 ‘tesA-undA cells for 1-alkene production. The highest yield of 1-undecene was obtained from the spent medium of M. tundripaludum SV96 at 68.9 ± 11.6 μmol mol Csubstrate–1. However, further large-scale studies on fermenters and their optimization are required to increase the production yields of organic acids in methanotrophs.

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“…In environmental carbon flux, CH 4 oxidizing bacteria are the key regulators for CH 4 abatement (Hanson and Hanson, 1996; Saarela et al, 2020). Due to its abundance and potentiality as a sustainable carbon feedstock, the development of the biological processes for CH 4 conversion to bio-based chemicals/liquid fuel is promising and attractive research area (Liu et al, 2020; López et al, 2013; Sun et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Batch experiments demonstrating a two-stage bacterial process coupling methanotrophic and heterotrophic bacteria for 1-alkene production from methane

Khanongnuch¹,

Mangayil²,

Santala³

et al. 2021

Preprint

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Methane (CH4) is a sustainable carbon feedstock source for aerobic CH4-oxidizing bacteria (methanotrophs) to produce value-added chemicals. Under O2-limiting conditions, CH4 oxidation results in the production of various short-chain organic acids and platform chemicals. However, these CH4-derived products are still limited to C2-C6 and could be extended by utilizing them as a feedstock for heterotrophic bacteria. A two-stage system for CH4 abatement and 1-alkene production was developed in this study. Gamma- and alphaproteobacterial methanotrophs, i.e. Methylobacter tundripaludum SV96 and Methylocystis rosea SV97, respectively, were investigated in batch tests under different gas supplementation schemes. Under O2 limiting conditions (O2/CH4 molar ratio ~0.3), M. tundripaludum SV96 could potentially produce formate, acetate, succinate, and malate, accounted for ~7.4% of mol-CH4 consumed. For the first time, the organic acids-rich spent media derived from O2 limited-methanotrophic cultivation were successfully used for 1-alkene production using engineered Acinetobacter baylyi ADP1 (′tesA-undA) cells.

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Improved methane removal in exhaust gas from biogas upgrading process using immobilized methane-oxidizing bacteria

Cited by 28 publications

References 37 publications

Proteinaceous methanotrophs for feed additive using biowaste as carbon and nutrients source

Proteinaceous methanotrophs for feed additive using biowaste as carbon and nutrients source

Batch Experiments Demonstrating a Two-Stage Bacterial Process Coupling Methanotrophic and Heterotrophic Bacteria for 1-Alkene Production From Methane

Batch experiments demonstrating a two-stage bacterial process coupling methanotrophic and heterotrophic bacteria for 1-alkene production from methane

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