CO2 utilizing microbes — A comprehensive review

Saini, Rashmi; Kapoor, Rupam; Kumar, Ram; Siddiqi, Tariq Omar; Kumar, Anil

doi:10.1016/j.biotechadv.2011.08.009

Cited by 96 publications

(43 citation statements)

References 203 publications

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“…Each of the bacterial groups in the isotopically enriched SIP fractions have been identified at class level as being potentially CO 2 fixing bacteria as described by Saini et al . 28 . All DNA fractions generated through SIP experiments were also probed through PCR with primers specifically targeting the archaeal 16S rRNA gene 29 .…”

Section: Resultsmentioning

confidence: 99%

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Large perturbations in CO2 flux and subsequent chemosynthesis are induced in agricultural soil by the addition of elemental sulfur

Kelleher

Flanagan

Hart

et al. 2017

Sci Rep

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The microbial contribution to soil organic matter has been shown to be much larger than previously thought and thus it plays a major role in carbon cycling. Among soil microorganisms, chemoautotrophs can fix CO2 without sunlight and can glean energy through the oxidation of reduced elements such as sulfur. Here we show that the addition of sulfur to soil results in an initial surge in production of CO2 through microbial respiration, followed by an order of magnitude increase in the capture of carbon from the atmosphere as elemental sulfur is oxidised to sulfate. Thiobacillus spp., take advantage of specific conditions to become the dominant chemoautotrophic group that consumes CO2. We discern the direct incorporation of atmospheric carbon into soil carbohydrate, protein and aliphatic compounds and differentiate these from existing biomass. These results suggest that chemoautotrophs can play a large role in carbon cycling and that this carbon is heavily influenced by land management practises.

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Section: Resultsmentioning

confidence: 99%

“…The 16S rDNA amplicons were generated with primer pair 909F (SEQ) and 1492R (SEQ) 28 . Primer X was synthesized with unique tags to allow for sample identification 55 .…”

Section: Methodsmentioning

confidence: 99%

Large perturbations in CO2 flux and subsequent chemosynthesis are induced in agricultural soil by the addition of elemental sulfur

Kelleher

Flanagan

Hart

et al. 2017

Sci Rep

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“…These contents were fairly applicable to MFC applications for recycling and reusing the emitted CO 2 in wastewater for the generation of bioenergy-CH 4 (Villano et al, 2010) and biodiesel (Powell and Hill, 2010) or the production of materials-formic acid (Zhao et al, 2012) and PHA (Yagi et al, 1996). In fact, several CO 2 -utilizing bacteria were considered to produce bioenergy and biomaterials (Saini et al, 2011) In particular, on the way from Taipei City to Lanyang Plain in Yi-Lan, the fifth longest tunnel in the world, 12.9 km Hsueh-Shan Tunnel provided convenient traffic for northeast Taiwan. However, such a closed long tunnel caused severe air pollution due to poor diffusive conditions (or so-termed the piston effect; Ma et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Reduction of Carbon Dioxide Emission by Using Microbial Fuel Cells during Wastewater Treatment

Chen

Liu

Hung

et al. 2013

Aerosol Air Qual. Res.

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To explore the feasibility of simultaneous carbon reduction and energy saving/recycling during wastewater decolorization, this study used naturally-occurring microbes (e.g., Aeromonas and Klebsiella sp.) for dye decolorization as well as energy and materials recycling. These microbes were tested for capabilities of bioelectricity generation in parallel with dye treatment for simultaneous energy recovery. The supplementation of electron-shuttling mediators (e.g., aminophenols) significantly increased the electron-transfer efficiency of electrochemically-active microorganisms. Moreover, the presence of decolorized intermediate(s) might repress intracellular accumulation of the biodegradable polyhydroxyalkanoates (PHAs), likely due to toxicity of aromatic amines. Microbial fuel cells (MFCs) appear to be feasible for use in the reduction of CO 2 emitted (ca. 40-60 Faraday efficiency) during the generation of bioenergy (e.g., bioelectricity) and biomaterials (e.g., PHAs) in wastewater treatment, thus aiding the development of cradle-to-cradle sustainable designs.

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“…The digester consists of a large variety of interactive microorganisms, enzymes and genetic functions. Little is known about their specific roles in specific processes (Hung et al 2011;Saini et al 2011). The microbial ecosystem is so complex that the digester has been regarded as a "black box" for a long time.…”

Section: Microbiology and Metagenomicsmentioning

confidence: 99%

Development of Anaerobic Digestion of Animal Waste: From Laboratory, Research and Commercial Farms to a Value-Added New Product

Shih¹

2015

Anaerobic Biotechnology

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A systematic study on thermophilic anaerobic digestion of poultry waste was carried out at North Carolina State University over the last 35 years. The concept and experiments were initiated in the laboratory and technical feasibility was proven by a pilot-scale digester on the university farm and subsequently full-scale in China. Multiple benefits of the digester system in animal and crop productions, waste conversion, biogas production, nutrient recycle, farm sanitation and CO2 reduction were demonstrated. The possibility of financial gain was projected for an integrated system with an anaerobic digester at its core. Also, interestingly, a feather-degrading bacterium was isolated from the digester and, subsequently, a bacterial keratinase was purified. This enzyme was found useful in processing feather meal, degrading prion protein -which is the putative cause of bovine spongiform encephalopathy or commonly known as mad cow disease -and improving protein digestibility in animal feeds. As a feed enzyme, keratinase is now produced at industrial scale and marketed globally. A total of 12 patents were generated from this series of studies from waste management and energy production to enzyme technology. In the foreseeable future, new biotechnologies, including genomics, proteomics and bioinformatics, are able to probe into the complex bio-process for better understanding and improving biogas production. An integrated system, or Holistic Farming, is proposed to facilitate not only waste management and energy production, but also agricultural and environmental sustainability. This system could drive a new model of agriculture for the 21st Century.

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CO2 utilizing microbes — A comprehensive review

Cited by 96 publications

References 203 publications

Large perturbations in CO2 flux and subsequent chemosynthesis are induced in agricultural soil by the addition of elemental sulfur

Large perturbations in CO2 flux and subsequent chemosynthesis are induced in agricultural soil by the addition of elemental sulfur

Reduction of Carbon Dioxide Emission by Using Microbial Fuel Cells during Wastewater Treatment

Development of Anaerobic Digestion of Animal Waste: From Laboratory, Research and Commercial Farms to a Value-Added New Product

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