AMMONIA PRETREATMENT OF BIOMASS FOR IMPROVED INHIBITOR PROFILE

AMMONIA PRETREATMENT OF BIOMASS FOR IMPROVED INHIBITOR PROFILE

Methods for treating biomass for release of fermentable sugars with an improved inhibitor profile are provided. Specifically, a hydrolysate comprising fermentable sugars with an improved inhibitor profile is obtained by saccharification of a reaction product obtained by pretreating biomass with ammo...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WING, KEITH DUMONT, CAMP, CARL E, FOX, BRADLEY CURT, BAZZANA, STEPHANE FRANCOIS, SCHIFFINO, RINALDO, S
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BEER
BIOCHEMISTRY
CHEMISTRY
ENZYMOLOGY
FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE
METALLURGY
MICROBIOLOGY
MUTATION OR GENETIC ENGINEERING
SPIRITS
VINEGAR
WINE
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Beschreibung
Zusammenfassung:Methods for treating biomass for release of fermentable sugars with an improved inhibitor profile are provided. Specifically, a hydrolysate comprising fermentable sugars with an improved inhibitor profile is obtained by saccharification of a reaction product obtained by pretreating biomass with ammonia under suitable reaction conditions. The pretreated biomass reaction product has an acetamide to acetate molar ratio greater than about 1 and an acetyl conversion of greater than 60%. The acetamide to acetate molar ratio is maintained greater than about 1 throughout saccharification. The hydrolysate may be fermented to a target compound.