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1. (IN5002/DELNP/2011) ORGANIC SOLVENT PRETREATMENT OF BIOMASS TO ENHANCE ENZYMATIC SACCHARIFICATION

Office : India
Application Number: 5002/DELNP/2011 Application Date: 29.06.2011
Publication Number: 5002/DELNP/2011 Publication Date: 04.05.2012
Publication Kind : A
Prior PCT appl.: Application Number:PCTUS2009068373 ; Publication Number:WO2010080464 Click to see the data
IPC:
C12P 7/10
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
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
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:
EP2358886JP2012512658ES2401730CN102257151CA2743450BRPI0916158
AU2009335804ID051.4415MYPI 2011002123WO/2010/080464