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  Glucanocellulosic ethanol: the undiscovered biofuel potential in energy crops and marine biomass

Falter, C., Zwikowics, C., Eggert, D., Blümke, A., Naumann, M., Wolff, K., et al. (2015). Glucanocellulosic ethanol: the undiscovered biofuel potential in energy crops and marine biomass. Scientific Reports, 5: 13722. doi:10.1038/srep13722.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0028-6566-2 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0028-656A-9
Genre: Journal Article

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srep13722.pdf (Publisher version), 2MB
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2015
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© Falter, C. et al.

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http://dx.doi.org/10.1038/srep13722 (Publisher version)
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 Creators:
Falter, Christian1, Author
Zwikowics, Claudia1, Author
Eggert, Dennis2, 3, Author              
Blümke, Antje1, Author
Naumann, Marcel1, Author
Wolff, Kerstin1, Author
Ellinger, Dorothea1, Author
Reimer, Rudolph2, Author
Voigt, Christian A.1, Author
Affiliations:
1Phytopathology and Biochemistry, Biocenter Klein Flottbek, University of Hamburg, Hamburg, Germany, ou_persistent22              
2Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany, ou_persistent22              
3Miller Group, Atomically Resolved Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938288              

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Free keywords: Environmental biotechnology; Molecular engineering in plants
 Abstract: Converting biomass to biofuels is a key strategy in substituting fossil fuels to mitigate climate change. Conventional strategies to convert lignocellulosic biomass to ethanol address the fermentation of cellulose-derived glucose. Here we used super-resolution fluorescence microscopy to uncover the nanoscale structure of cell walls in the energy crops maize and Miscanthus where the typical polymer cellulose forms an unconventional layered architecture with the atypical (1, 3)-β-glucan polymer callose. This raised the question about an unused potential of (1, 3)-β-glucan in the fermentation of lignocellulosic biomass. Engineering biomass conversion for optimized (1, 3)-β-glucan utilization, we increased the ethanol yield from both energy crops. The generation of transgenic Miscanthus lines with an elevated (1, 3)-β-glucan content further increased ethanol yield providing a new strategy in energy crop breeding. Applying the (1, 3)-β-glucan-optimized conversion method on marine biomass from brown macroalgae with a naturally high (1, 3)-β-glucan content, we not only substantially increased ethanol yield but also demonstrated an effective co-fermentation of plant and marine biomass. This opens new perspectives in combining different kinds of feedstock for sustainable and efficient biofuel production, especially in coastal regions.

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Language(s): eng - English
 Dates: 2015-03-272015-07-272015-09-01
 Publication Status: Published online
 Pages: 9
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1038/srep13722
PMC: PMC4555182
 Degree: -

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Title: Scientific Reports
  Abbreviation : Sci. Rep.
Source Genre: Journal
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Publ. Info: London, UK : Nature Publishing Group
Pages: - Volume / Issue: 5 Sequence Number: 13722 Start / End Page: - Identifier: Other: 2045-2322
CoNE: https://pure.mpg.de/cone/journals/resource/2045-2322