Methods of pretreating lignocellulosic biomass with reduced formation of fermentation inhibitors
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jan 26, 2016
Grant Date -
Dec 10, 2015
app pub date -
Jun 9, 2014
filing date -
Jun 9, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Methods of pretreating lignocellulosic biomass in preparation for enzymatic saccharification and fermentation are provided. Also provided are methods of producing ethanol from lignocellulosic biomass via enzymatic saccharification and fermentation that utilize the pretreatment method. In the methods, pretreatment is conducted in two stages. In the first stage, the lignocellulosic biomass is treated in a mildly acidic or near pH-neutral solution to promote delignification and lignin sulfonation, while minimizing the formation of degradation products that inhibit subsequent enzymatic saccharification and/or fermentation. In the second stage, the pH of the solution is decreased in order to promote the depolymerization and dissolution of hemicelluloses in the lignocellulosic biomass.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF AGRICULTURE | 1400 INDEPENDENCE AVE S W WASHINGTON DC 20250 |
International Classification(s)

- 2014 Application Filing Year
- C12P Class
- 1590 Applications Filed
- 1297 Patents Issued To-Date
- 81.58 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Gleisner, Roland | Jefferson, US | 8 | 6 |
# of filed Patents : 8 Total Citations : 6 | |||
Zhu, JunYong | Madison, US | 15 | 55 |
# of filed Patents : 15 Total Citations : 55 |
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Patent Citation Ranking
- 4 Citation Count
- C12P Class
- 54.95 % this patent is cited more than
- 9 Age
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11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 26, 2027 |
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