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1. (CA2743450) ORGANIC SOLVENT PRETREATMENT OF BIOMASS TO ENHANCE ENZYMATIC SACCHARIFICATION

Office : Canada
Application Number: 2743450 Application Date: 17.12.2009
Publication Number: 2743450 Publication Date: 15.07.2010
Publication Kind : A1
Prior PCT appl.: Application Number:US2009068373 ; Publication Number: Click to see the data
IPC:
C12P 7/10
C08H 8/00
C13K 1/02
D21C 3/02
D21C 3/20
C CHEMISTRY; METALLURGY
12
BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
P
FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
7
Preparation of oxygen-containing organic compounds
02
containing a hydroxy group
04
acyclic
06
Ethanol, i.e. non-beverage
08
produced as by-product or from waste or cellulosic material substrate
10
substrate containing cellulosic material
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
H
DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
8
Macromolecular compounds derived from lignocellulosic materials
C CHEMISTRY; METALLURGY
13
SUGAR INDUSTRY
K
SACCHARIDES, OTHER THAN SUCROSE, OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DI-, OLIGO- OR POLYSACCHARIDES
1
Glucose; Glucose-containing syrups
02
obtained by saccharification of cellulosic materials
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
C
PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
3
Pulping cellulose-containing materials
02
with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
C
PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
3
Pulping cellulose-containing materials
20
with organic solvents
CPC:
C12P 19/14
C08H 8/00
C10G2300/1011
C10G2300/1014
C10G2300/44
C10G2300/805
C10L 1/02
C12P 7/10
C12P 7/16
C12P 7/18
C12P 19/02
C12P2201/00
C13K 1/02
D21C 3/024
D21C 3/20
D21C 11/0007
Y02E 50/10
Y02E 50/16
Y02E 50/17
Y02E 50/343
Y02P 30/20
Applicants: E. I. DU PONT DE NEMOURS AND COMPANY
Inventors: DINER, BRUCE A.
FAN, JANINE
Priority Data: 61/139,179 19.12.2008 US
Title: (EN) ORGANIC SOLVENT PRETREATMENT OF BIOMASS TO ENHANCE ENZYMATIC SACCHARIFICATION
(FR) PRE-TRAITEMENT DE BIOMASSE PAR UN SOLVANT ORGANIQUE POUR AMELIORER LA SACCHARIFICATION ENZYMATIQUE
Abstract:
(EN) Biomass is pretreated using an organic solvent solution under alkaline conditions in the presence of ammonia and optionally an additional nucleophile to fragment and extract lignin without loss of hemicellulose. Pretreated biomass is further hydrolyzed with a saccharification enzyme consortium. Fermentable sugars released by saccharification may be utilized for the production of target chemicals by fermentation.


Also published as:
EP2358886JP2012512658ES2401730CN102257151BRPI0916158AU2009335804
ID051.4415MYPI 2011002123IN5002/DELNP/2011WO/2010/080464