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Background: Xylo-oligosaccharide is the spotlight of functional sugar that improves economic benefits of lignocellulose biorefinery. Acetic acid acidolysis technology provides a promising application for xylo-oligosaccharide commercial production, but it is restricted by the aliphatic (wax-like) compounds, which cover the outer and inner surfaces of plants.
Results: We removed aliphatic compounds by extraction with two organic solvents. The benzene-ethanol extraction increased the yield of acidolyzed xylo-oligosaccharides of corncob, sugarcane bagasse, wheat straw, and poplar sawdust by 14.79%, 21.05%, 16.68%, and 7.26% while ethanol extraction increased it by 11.88%, 17.43%, 1.26%, and 13.64%, respectively.
Conclusion: The single ethanol extraction was safer, more environmentally-friendly and more cost-effective than benzene-ethanol solvent. In short, organic solvents extraction provided a promising auxiliary method for the selective acidolysis of herbaceous xylan to xylo-oligosaccharides, while it had minimal impact on woody poplar.
Keywords
Aliphatic extractives, Acetic acid acidolysis, Xylo-oligosaccharides, Enzymatic hydrolysis, Agricultural residues
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CURRENT STATUS: Published
View the published article at Biotechnology for Biofuels.
Version 1
Posted 23 Mar, 2021
No community comments so far
Editorial decision: Major revision
On 30 Mar, 2021
Review #1 received
Received 28 Mar, 2021
Review #2 received
Received 27 Mar, 2021
Reviewer #2 agreed
On 23 Mar, 2021
Reviews received
Received 19 Mar, 2021
Reviewer #1 agreed
On 19 Mar, 2021
Reviewers invited
Invitations sent on 17 Mar, 2021
Editor invited
On 17 Mar, 2021
Editor assigned
On 15 Mar, 2021
Submission checks complete
On 15 Mar, 2021
First submitted
On 15 Mar, 2021
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Subject Areas
Biotechnology and Bioengineering
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See the published version of this preprint at Biotechnology for Biofuels.
This is a preprint, a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Research Article
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Published
View the published article at Biotechnology for Biofuels.
Version 1
Posted 23 Mar, 2021
No community comments so far
Editorial decision: Major revision
On 30 Mar, 2021
Review #1 received
Received 28 Mar, 2021
Review #2 received
Received 27 Mar, 2021
Reviewer #2 agreed
On 23 Mar, 2021
Reviews received
Received 19 Mar, 2021
Reviewer #1 agreed
On 19 Mar, 2021
Reviewers invited
Invitations sent on 17 Mar, 2021
Editor invited
On 17 Mar, 2021
Editor assigned
On 15 Mar, 2021
Submission checks complete
On 15 Mar, 2021
First submitted
On 15 Mar, 2021
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Biotechnology and Bioengineering
License:
This work is licensed under a CC BY 4.0 License. Read Full License
View the published article at Biotechnology for Biofuels.
Background: Xylo-oligosaccharide is the spotlight of functional sugar that improves economic benefits of lignocellulose biorefinery. Acetic acid acidolysis technology provides a promising application for xylo-oligosaccharide commercial production, but it is restricted by the aliphatic (wax-like) compounds, which cover the outer and inner surfaces of plants.
Results: We removed aliphatic compounds by extraction with two organic solvents. The benzene-ethanol extraction increased the yield of acidolyzed xylo-oligosaccharides of corncob, sugarcane bagasse, wheat straw, and poplar sawdust by 14.79%, 21.05%, 16.68%, and 7.26% while ethanol extraction increased it by 11.88%, 17.43%, 1.26%, and 13.64%, respectively.
Conclusion: The single ethanol extraction was safer, more environmentally-friendly and more cost-effective than benzene-ethanol solvent. In short, organic solvents extraction provided a promising auxiliary method for the selective acidolysis of herbaceous xylan to xylo-oligosaccharides, while it had minimal impact on woody poplar.
Figure 1
Figure 2
Figure 3
Figure 4
The full text of this article is available to read as a PDF.
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