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1. (WO2010080461) ORGANIC SOLVENT PRETREATMENT OF BIOMASS TO ENHANCE ENZYMATIC SACCHARIFICATION
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/080461 International Application No.: PCT/US2009/068365
Publication Date: 15.07.2010 International Filing Date: 17.12.2009
IPC:
C12P 7/10 (2006.01) ,C13K 1/02 (2006.01) ,D21C 3/02 (2006.01) ,D21C 3/20 (2006.01) ,D21C 3/22 (2006.01) ,C08H 8/00 (2010.01)
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
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
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
22
Other features of pulping processes
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
Applicants:
E. I. DU PONT DE NEMOURS AND COMPANY [US/US]; 1007 Market Street Wilmington, Delaware 19898, US (AllExceptUS)
DINER, Bruce, A. [US/US]; US (UsOnly)
FAN, Janine [US/US]; US (UsOnly)
Inventors:
DINER, Bruce, A.; US
FAN, Janine; US
Agent:
FELTHAM, S., Neil; E.I. du Pont de Nemours and Company Legal Patent Records center 4417 Lancaster, Delaware 19805, US
Priority Data:
61/139,16319.12.2008US
Title (EN) ORGANIC SOLVENT PRETREATMENT OF BIOMASS TO ENHANCE ENZYMATIC SACCHARIFICATION
(FR) PRÉ-TRAITEMENT DE BIOMASSE PAR SOLVANT ORGANIQUE POUR AMÉLIORER LA SACCHARIFICATION ENZYMATIQUE
Abstract:
(EN) Biomass is pretreated using an organic solvent solution under alkaline conditions in the presence of one of more sulfide (hydrosulfide) salt and optionally one or more additional nucleophile to fragment and extract lignin. 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.
(FR) Une biomasse est prétraitée à l'aide d'une solution de solvant organique dans des conditions alcalines en présence d'un ou plusieurs sels de sulfure (hydrosulfures) et éventuellement d'un ou plusieurs nucléophiles supplémentaires pour fragmenter et extraire de la lignine. La biomasse prétraitée est ensuite hydrolysée par un complexe enzymatique de saccharification. Les sucres fermentables libérés par la saccharification peuvent être employés dans la production de produits chimiques ciblés par fermentation.
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP2384364CA2744259