Ethanol production from xylose by enzymic isomerization and yeast fermentation. [Schizosaccharomyces pombe]

Journal Article · Thu Jan 01 00:00:00 EST 1981 · Biotechnol. Bioeng. Symp.; (United States)

OSTI ID:6217801

Chiang, L C; Hsiao, H Y; Ueng, P P; Chen, L F; Tsao, G T

Repetitive enzymic isomerization of xylose followed by yeast fermentation of xylulose, and simultaneous enzymic isomerization and yeast fermentation, were proven to be methods capable of converting xylose to EtOH. The fermentation product (EtOH, xylitol, or glycerol) has little inhibitory or deactivation effect on the activity of isomerase. In a comparison of the ability of yeasts to ferment xylulose to EtOH, Schizosaccharomyces pombe was found to be superior to industrial bakers' yeast. Under optimal conditions (pH 6, temperature 30 degrees), a final EtOH concentration of 6.3% was obtained from simulated hemicellulose hydrolyzate using a simultaneous fermentation process. The EtOH yield was more than 80% of theoretical.

• Research Organization: Lab Renewable Resour Eng, Purdue Univ, West Lafayette, IN 47907
• OSTI ID: 6217801
• Journal Information: Biotechnol. Bioeng. Symp.; (United States), Vol. 11
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
ETHANOL
PRODUCTION
XYLOSE
FERMENTATION
ISOMERIZATION
ENZYMES
YEASTS
ALCOHOLS
ALDEHYDES
BIOCONVERSION
CARBOHYDRATES
CHEMICAL REACTIONS
FUNGI
HYDROXY COMPOUNDS
MICROORGANISMS
MONOSACCHARIDES
ORGANIC COMPOUNDS
PENTOSES
PLANTS
SACCHARIDES
090222* - Alcohol Fuels- Preparation from Wastes or Biomass- (1976-1989)
140504 - Solar Energy Conversion- Biomass Production & Conversion- (-1989)