Production of ethyl acetate from dilute ethanol solutions by Candida utilis
The conversion of ethanol to ethyl acetate has an advantage as a method of ethanol recovery since ethyl acetate is amenable to simple solvent extraction. The potential of Candida utilis in this conversion was studied. The kinetics of accumulation of ethanol and ethyl acetate in glucose-grown C. utilis showed that ester formation resulted from ethanol utilization under appropriate aeration and was inhibited by Fe/sup 3 +/ supplementation. Candida utilis converted ethanol to ethyl acetate optimally at pH 5.0-7.0. The five-hour rate of ester production increased as the ethanol concentration increased to 10 g/L, and rapidly declined to zero at concentrations exceeding 35 g/L. Thus, C. utilis has potential to recover dilute ethanol in the form of ethyl acetate.
- Research Organization:
- National Research Council of Canada, Ottawa, Ontario
- OSTI ID:
- 6156591
- Journal Information:
- Biotechnol. Bioeng.; (United States), Vol. 26:9
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CANDIDA
PRODUCTIVITY
ETHANOL
BIOCONVERSION
ESTERIFICATION
BATCH CULTURE
GLUCOSE
IRON COMPOUNDS
METABOLISM
RESPONSE MODIFYING FACTORS
WASTE PRODUCT UTILIZATION
ALCOHOLS
ALDEHYDES
CARBOHYDRATES
CHEMICAL REACTIONS
FUNGI
HEXOSES
HYDROXY COMPOUNDS
MICROORGANISMS
MONOSACCHARIDES
ORGANIC COMPOUNDS
PLANTS
SACCHARIDES
TRANSITION ELEMENT COMPOUNDS
YEASTS
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