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Related Concept Videos

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Bioremediation

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Fates of Pyruvate01:20

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Carbon-dioxide Fixation01:28

Carbon-dioxide Fixation

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Carbon dioxide fixation in prokaryotes enables the assimilation of inorganic carbon into organic molecules, supporting biosynthetic pathways, sustaining ecosystems, and contributing to the global carbon cycle. It also has industrial applications in carbon capture and bioproduct synthesis. Autotrophic organisms rely on this process to utilize CO₂ as a carbon source in diverse environments.The Calvin CycleThe Calvin cycle is the most widespread carbon fixation mechanism, primarily used by...
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Green Algae01:21

Green Algae

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Green algae, also referred to as chlorophytes, are different from red algae in having the chloroplasts containing chlorophylls a and b, which give them their distinct green hue. However, they lack phycobiliproteins, preventing them from developing the red or blue-green pigmentation seen in red algae. In terms of photosynthetic pigment composition, green algae closely resemble plants and share a close evolutionary relationship with them. Taxonomically Green algae belong to Phylum Chlorophyta in...
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Lipid Catabolism01:25

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Triglycerides serve as crucial long-term energy storage molecules in microorganisms, providing a dense source of metabolic energy. Their breakdown is mediated by lipases, which hydrolyze triglycerides into glycerol and free fatty acids. Each of these components follows distinct metabolic pathways, ultimately contributing to ATP synthesis and cellular energy homeostasis.Glycerol MetabolismGlycerol, released from triglyceride hydrolysis, is phosphorylated by glycerol kinase to form...
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Updated: Dec 12, 2025

Biomass Conversion to Produce Hydrocarbon Liquid Fuel Via Hot-vapor Filtered Fast Pyrolysis and Catalytic Hydrotreating
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Carbon-Negative Biofuel Production.

Seungdo Kim1,2, Xuesong Zhang3,4, Ashwan Daram Reddy5

  • 1Great Lakes Bioenergy Research Center, Michigan State University, 164 Food Safety and Toxicology Building, East Lansing, Michigan 48824, United States.

Environmental Science & Technology
|August 14, 2020
PubMed
Summary
This summary is machine-generated.

Soil carbon sequestration (SCS) and carbon capture and storage (CCS) integrated with cellulosic biofuel production can achieve carbon-negative biofuels. Combining these carbon dioxide removal (CDR) technologies offers significant greenhouse gas mitigation potential.

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Area of Science:

  • Environmental Science
  • Climate Change Mitigation
  • Bioenergy

Background:

  • Achieving the 1.5 °C global temperature limit necessitates large-scale deployment of carbon dioxide removal (CDR) technologies.
  • Decentralized biorefineries processing agricultural residues and dedicated energy crops are key to sustainable biofuel production.

Purpose of the Study:

  • To evaluate the efficacy of soil carbon sequestration (SCS) and carbon capture and storage (CCS) integrated with cellulosic biofuel production for greenhouse gas mitigation.
  • To assess the economic implications of implementing CDR technologies in decentralized biorefinery systems.

Main Methods:

  • Modeling of SCS using cover crops on corn-producing lands.
  • Integration of CCS for biogenic CO2 from cellulosic biofuel biorefineries, including capture, transport, and injection into saline aquifers.
  • Analysis of decentralized biorefinery systems processing corn stover and switchgrass.

Main Results:

  • Carbon-negative cellulosic biofuels can be produced with CO2 emissions as low as -22.2 gCO2 MJ-1.
  • The inclusion of CDR technologies increases biofuel selling prices by 15-45%.
  • Economic incentives, such as cover crop incentives and CO2 tax credits, can offset increased biofuel costs.

Conclusions:

  • Combining SCS and CCS in decentralized biorefinery systems is an efficient strategy for greenhouse gas mitigation.
  • The total greenhouse gas mitigation potential in the Midwestern United States is estimated at 0.16 GtCO2 year-1.
  • Policy and economic incentives are crucial for the widespread adoption of these carbon-negative biofuel technologies.