Methods for improvement of enzymatic hydrolysis of lignocellullosic material
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United States of America Patent
Stats
-
Dec 6, 2016
Grant Date -
Jun 5, 2014
app pub date -
Jun 11, 2012
filing date -
Jun 30, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention relates to a method of enzymatic hydrolysis of a lignocellulosic material, comprising the steps of: a) pretreating the lignocellulosic material to obtain a slurry having a pH of less than 6; b) adding NaOH, Ca(OH)2 and/or CaO to the slurry to increase its pH to at least 8, said addition being carried out at a slurry temperature of at least 60° C.; c) reducing the pH of the slurry to below 7; and optionally cooling the slurry from step b) to a temperature below 60° C.; and d) adding hydrolytic enzymes to the slurry from c) and allowing the slurry to hydrolyze wherein no washing of the slurry is performed prior to step d).
First Claim
Other Claims data not available
Family
International Classification(s)
- 2012 Application Filing Year
- C12P Class
- 1680 Applications Filed
- 1225 Patents Issued To-Date
- 72.92 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- C12P Class
- 54.95 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jun 6, 2028 |
