Process for enhanced fermentation of xylose to ethanol

Patent · Tue May 05 00:00:00 EDT 1987

OSTI ID:6386936

Jeffries, T W

A process is described for producing an enhanced ethanol yield by aerobically fermenting D-xylose in a fermentation medium with Pachysolen tannophilus having deposit accession numbers. The improvement comprises adding glucose to the fermentation medium after the fermentation has commenced and during the carrying forth of the fermentation with the adding being continuously or at intervals during each 24 hours of the carrying forth of the fermentation and being of an amount of the glucose providing a glucose concentration not exceeding one percent by weight of the fermentation medium until substantially all D-xylose is consumed.

• Assignee: Secretary of Agriculture, Washington, DC
• Patent Number(s): US 4663284
• OSTI ID: 6386936
• Resource Relation: Patent File Date: Filed date 14 Sep 1984
• Country of Publication: United States
• Language: English

Related Subjects

10 SYNTHETIC FUELS
ETHANOL
PRODUCTION
XYLOSE
FERMENTATION
AEROBIC CONDITIONS
CHEMICAL REACTION YIELD
GLUCOSE
QUANTITY RATIO
YEASTS
ALCOHOLS
ALDEHYDES
BIOCONVERSION
CARBOHYDRATES
FUNGI
HEXOSES
HYDROXY COMPOUNDS
MICROORGANISMS
MONOSACCHARIDES
ORGANIC COMPOUNDS
PENTOSES
PLANTS
SACCHARIDES
YIELDS
090221* - Alcohol Fuels- Chemical Synthesis- (1976-1989)