Continuous and static fermentation of glucose to ethanol by immobilized saccharomyces cerevisiae cells of different ages

Journal Article · Fri Jan 01 04:00:00 EST 1982 · Appl. Environ. Microbiol.; (United States)

OSTI ID:6142457

McGhee, J E; Julian, G; Detroy, R W

Glucose was converted to EtOH by Ca alginate-entrapped S. cerevisiae NRRL Y-2034 cells that were 24, 48, 72, and 96 hours old in continuous-flow and static repeated-batch fermentors. In general, older yeast cells were more efficient than younger ones. In most cases, the continuous fermentations were better than the static ones in producing maximum EtOH yields (5.11 g/10 g glucose) over extended time periods. The best static fermentation (with 24-h-old cells) converted 100% of the glucose to EtOH for approximately 12 days, whereas the best continuous fermentation (with 96-h-old cells) converted 100% of the glucose for a remarkable period of approximately 3 months.

• Research Organization: Northern Regional Research Center, Agricultural Research Service, Peoria, IL 61604 USA
• OSTI ID: 6142457
• Journal Information: Appl. Environ. Microbiol.; (United States), Journal Name: Appl. Environ. Microbiol.; (United States) Vol. 44:1; ISSN AEMID
• Country of Publication: United States
• Language: English

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ALCOHOLS
ALDEHYDES
BIOCONVERSION
CARBOHYDRATES
CONTINUOUS CULTURE
ETHANOL
FERMENTATION
FUNGI
GLUCOSE
HEXOSES
HYDROXY COMPOUNDS
IMMOBILIZED CELLS
MICROORGANISMS
MONOSACCHARIDES
ORGANIC COMPOUNDS
PERFORMANCE
PLANTS
SACCHARIDES
SACCHAROMYCES
SACCHAROMYCES CEREVISIAE
YEASTS