Comprehensive insights into sustainable conversion of agricultural and food waste into microbial protein for animal feed production DOI Creative Commons
Kashif Rasool, Sabir Hussain, Asif Shahzad

et al.

Reviews in Environmental Science and Bio/Technology, Journal Year: 2023, Volume and Issue: 22(2), P. 527 - 562

Published: April 15, 2023

Abstract The growing global population and higher living standards instantly demand the transition in direction of a sustainable food system. A substantial section means agricultural lands are presently committed to protein-rich feed production rear livestock for human consumption. Conversely, accelerated farming activities industry have rendered drastic increase waste which impair economic environmental sustainability ecosystem. This situation emerges need developing an integrated technology management improve footprints. Microbial protein (MP) based on renewable electron carbon sources has potential as substitute source. MP animal use is fast derived from bacteria, algae, fungi including yeast. produced all types microbes currently commercialized use. However, novel methods processes also under investigation make more economical sustainable. Current research concentrated valorization materials by using high content-containing microorganisms, can then be used feed. Using such kind approach, agroindustry resources upcycling contribute towards finding sustainable, cheaper, environment-friendly sources. review first describes feedstock summarizes recent progress application MP-producing microorganisms fungus, yeast, phototrophic microbes. Bioprocesses, advances been explored discussed detail. Finally, feed, its challenges, future perspectives evaluated.

Language: Английский

Electromicrobiology: the ecophysiology of phylogenetically diverse electroactive microorganisms DOI
Derek R. Lovley, Dawn E. Holmes

Nature Reviews Microbiology, Journal Year: 2021, Volume and Issue: 20(1), P. 5 - 19

Published: July 27, 2021

Language: Английский

Citations

404
CANDIDATUS LIST No. 3. Lists of names of prokaryotic Candidatus taxa DOI Open Access
Aharon Oren, George M Garrity

INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, Journal Year: 2022, Volume and Issue: 72(1)

Published: Jan. 31, 2022

Microbiology Society journals contain high-quality research papers and topical review articles. We are a not-for-profit publisher we support invest in the microbiology community, to benefit of everyone. This supports our principal goal develop, expand strengthen networks available members so that they can generate new knowledge about microbes ensure it is shared with other communities.

Language: Английский

Citations

261
Methanotrophs: Discoveries, Environmental Relevance, and a Perspective on Current and Future Applications DOI Creative Commons
Simon Guerrero-Cruz, Annika Vaksmaa, Marcus A. Horn

et al.

Frontiers in Microbiology, Journal Year: 2021, Volume and Issue: 12

Published: May 14, 2021

Methane is the final product of anaerobic decomposition organic matter. The conversion matter to methane (methanogenesis) as a mechanism for energy conservation exclusively attributed archaeal domain. oxidized by methanotrophic microorganisms using oxygen or alternative terminal electron acceptors. Aerobic bacteria belong phyla Proteobacteria and Verrucomicrobia, while oxidation also mediated more recently discovered methanotrophs with representatives in both archaea domains. coupled reduction nitrate, nitrite, iron, manganese, sulfate, acceptors (e.g., humic substances) This review highlights relevance methanotrophy natural anthropogenically influenced ecosystems, emphasizing environmental conditions, distribution, function, co-existence, interactions, availability that likely play key role regulating their function. A systematic overview aspects ecology, physiology, metabolism, genomics crucial understand contribution mitigation efflux atmosphere. We give significance processes under microaerophilic conditions aerobic oxidizers. In context we emphasize current potential future applications from two different angles, namely wastewater treatment through application methanotrophs, biotechnological resource recovery waste streams. Finally, identify knowledge gaps may lead opportunities harness further benefits production valuable bioproducts enabling bio-based circular economy.

Language: Английский

Citations

189
Diversity and Evolution of Methane-Related Pathways in Archaea DOI Open Access
Pierre Garcia, Simonetta Gribaldo, Guillaume Borrel

et al.

Annual Review of Microbiology, Journal Year: 2022, Volume and Issue: 76(1), P. 727 - 755

Published: June 27, 2022

Methane is one of the most important greenhouse gases on Earth and holds an place in global carbon cycle. Archaea are only organisms that use methanogenesis to produce energy rely methyl-coenzyme M reductase complex (Mcr). Over last decade, new results have significantly reshaped our view diversity methane-related pathways Archaea. Many lineages synthesize or methane been identified across whole archaeal tree, leading a greatly expanded substrates mechanisms. In this review, we present state art these advances how they challenge established scenarios origin evolution methanogenesis, discuss potential trajectories may led strikingly wide range metabolisms.

Language: Английский

Citations

79
Phylogenetically and catabolically diverse diazotrophs reside in deep-sea cold seep sediments DOI Creative Commons
Xiyang Dong, Chuwen Zhang, Yongyi Peng

et al.

Nature Communications, Journal Year: 2022, Volume and Issue: 13(1)

Published: Aug. 19, 2022

Microbially mediated nitrogen cycling in carbon-dominated cold seep environments remains poorly understood. So far anaerobic methanotrophic archaea (ANME-2) and their sulfate-reducing bacterial partners (SEEP-SRB1 clade) have been identified as diazotrophs deep sea sediments. However, it is unclear whether other microbial groups can perform fixation such ecosystems. To fill this gap, we analyzed 61 metagenomes, 1428 metagenome-assembled genomes, six metatranscriptomes derived from 11 globally distributed seeps. These sediments contain phylogenetically diverse nitrogenase genes corresponding to an expanded diversity of diazotrophic lineages. Diverse catabolic pathways were predicted provide ATP for fixation, suggesting diazotrophy seeps not necessarily associated with sulfate-dependent oxidation methane. Nitrogen among various inferred be genetically mobile subject purifying selection. Our findings extend the capacity five candidate phyla (Altarchaeia, Omnitrophota, FCPU426, Caldatribacteriota UBA6262), suggest that might contribute substantially global balance.

Language: Английский

Citations

78
Methane-dependent complete denitrification by a single Methylomirabilis bacterium DOI

Xiangwu Yao,

Jiaqi Wang,

Mingyue He

et al.

Nature Microbiology, Journal Year: 2024, Volume and Issue: 9(2), P. 464 - 476

Published: Jan. 16, 2024

Language: Английский

Citations

43
Mechanisms of extracellular electron transfer in anaerobic methanotrophic archaea DOI Creative Commons

Heleen T. Ouboter,

Rob Mesman, Tom Sleutels

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Feb. 17, 2024

Abstract Anaerobic methanotrophic (ANME) archaea are environmentally important, uncultivated microorganisms that oxidize the potent greenhouse gas methane. During methane oxidation, ANME engage in extracellular electron transfer (EET) with other microbes, metal oxides, and electrodes through unclear mechanisms. Here, we cultivate ANME-2d ( ‘Ca . Methanoperedens’) bioelectrochemical systems observe strong methane-dependent current (91–93% of total current) associated high enrichment ‘ Ca Methanoperedens’ on anode (up to 82% community), as determined by metagenomics transmission microscopy. Electrochemical metatranscriptomic analyses suggest EET mechanism is similar at various electrode potentials, possible involvement an uncharacterized short-range transport protein complex OmcZ nanowires.

Language: Английский

Citations

21
Challenges and opportunities in biogas conversion to microbial protein: A pathway for sustainable resource recovery from organic waste DOI Creative Commons
Muhammad Aamir Shahzad, Fares Almomani, Asif Shahzad

et al.

Process Safety and Environmental Protection, Journal Year: 2024, Volume and Issue: 185, P. 644 - 659

Published: March 15, 2024

Addressing global food security is a paramount challenge that necessitates shift towards enhanced self-sufficiency. The escalating demand for animal-derived proteins, such as meat and dairy, underscores the critical role of livestock farming in meeting nutritional needs population. To sustain this, protein-rich feed, essential production, consumes considerable share agricultural resources. Concurrently, urban expansion significantly increases organic waste, undermining both economic environmental sustainability. This highlights urgent need innovative waste management solutions bolster Microbial protein (MP), produced by methane-oxidizing bacteria (MOB), presents promising solution. It offers land-independent method producing feed aquaculture, potentially alleviating pressure on lands. Despite its advantages, reliance natural gas MP production raises sustainability concerns when compared to traditional feeds like fishmeal soybean meal. Recent research focuses valorizing materials using high-protein microorganisms animal thereby addressing these concerns. Aerobic fermentation methane produce MP, utilizing methanotrophic microbes, showcases distinct advantages. These microbes biomass, containing over 75% protein, offering viable alternative conventional sources. review explores potential biowaste valorization through integration anaerobic digestion (AD) subsequent biogas. delves into mechanisms biogas from AD highlighting methane's value advancements, challenges inefficient fermenters, MOB inhibition, safety issues hinder large-scale production. Further investigation life cycle assessment (LCA) techno-economic analysis (TCA) integrated technologies enhancing establishing sustainable system.

Language: Английский

Citations

18
Coupled anaerobic methane oxidation and reductive arsenic mobilization in wetland soils DOI Open Access
Ling-Dong Shi, Ting Guo, Pan-Long Lv

et al.

Nature Geoscience, Journal Year: 2020, Volume and Issue: 13(12), P. 799 - 805

Published: Nov. 23, 2020

Language: Английский

Citations

121
Thermogenic hydrocarbon biodegradation by diverse depth-stratified microbial populations at a Scotian Basin cold seep DOI Creative Commons
Xiyang Dong, Jayne E. Rattray, D C Campbell

et al.

Nature Communications, Journal Year: 2020, Volume and Issue: 11(1)

Published: Nov. 17, 2020

At marine cold seeps, gaseous and liquid hydrocarbons migrate from deep subsurface origins to the sediment-water interface. Cold seep sediments are known host taxonomically diverse microorganisms, but little is about their metabolic potential depth distribution in relation hydrocarbon electron acceptor availability. Here we combined geophysical, geochemical, metagenomic metabolomic measurements profile microbial activities at a newly discovered sea. Metagenomic profiling revealed compositional functional differentiation between near-surface deeper layers. In both sulfate-rich sulfate-depleted depths, various archaeal bacterial community members actively oxidizing thermogenic anaerobically. Depth distributions of hydrocarbon-oxidizing archaea that they not necessarily associated with sulfate reduction, which especially surprising for anaerobic ethane butane oxidizers. Overall, these findings link subseafloor microbiomes biochemical mechanisms degradation deeply-sourced hydrocarbons.

Language: Английский

Citations

105