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03277nam a2200685Ia 4500 |
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10.1186-s13068-021-01900-6 |
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220427s2021 CNT 000 0 und d |
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|a 17546834 (ISSN)
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|a Life cycle greenhouse gas emissions of ethanol produced via fermentation of sugars derived from shrub willow (Salix ssp.) hot water extraction in the Northeast United States
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|b BioMed Central Ltd
|c 2021
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|z View Fulltext in Publisher
|u https://doi.org/10.1186/s13068-021-01900-6
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|a Background: The amount of carbon dioxide in the atmosphere has been on the rise for more than a century. Bioenergy crops are seen by the Intergovernmental Panel on Climate Change as an essential part of the solution to addressing climate change. To understand the potential impact of shrub willow (Salix spp.) crop in the northeast United States, effective and transparent life cycle assessment of these systems needs to occur. Results: Here we show, ethanol produced from the fermentation of sugars from hot water extract of willow grown on cropland can sequester 0.012 ± 0.003 kg CO2eq MJ−1 for a supply system incorporating summer harvest and storage. Despite decreases in soil organic carbon when willow is instead grown on grassland, the produced fuel still can provide significant climate benefits compared to gasoline. Conclusions: Shrub willow converted to ethanol can be a carbon negative source of transportation fuel when the electricity and heat required for the conversion process are generated from renewable biomass. The sequestration of carbon in the belowground portion of the plants is essential for the negative GHG balance for cropland and low GHG emissions in grassland.[Figure not available: see fulltext.] © 2021, The Author(s).
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|a Bioethanol
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|a biofuel
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|a Biofuels
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|a Biomass
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|a Biomass
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|a Carbon dioxide
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|a Carbon Dioxide
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|a Carbon dioxide process
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|a Climate change
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|a Conversion process
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|a Crops
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|a ethanol
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|a Ethanol
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|a Ethanol
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|a Ethanol
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|a experimental study
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|a Extraction
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|a Extraction
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|a extraction method
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|a Farm Crops
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|a fermentation
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|a Fermentation
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|a Fermentation
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|a Fermentation
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|a Gas emissions
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|a Greenhouse gases
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|a Hot water extraction
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|a Hot water extraction
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|a Hot water extracts
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|a Intergovernmental panel on climate changes
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|a Life cycle
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|a life cycle analysis
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|a Life cycle assessment
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|a Life Cycle Assessment (LCA)
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|a Life-cycle greenhouse gas emissions
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|a Organic carbon
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|a Soil organic carbon
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|a Sugars
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|a Transportation fuels
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|a United States
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|a Water
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|a Willow
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|a Amidon, T.E.
|e author
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|a Eisenbies, M.H.
|e author
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|a Fortier, M.-O.
|e author
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|a Therasme, O.
|e author
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|a Volk, T.A.
|e author
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| 773 |
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|t Biotechnology for Biofuels
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