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

Journal Article · Thu Jul 01 04:00:00 EDT 1982 · Appl. Environ. Microbiol.; (United States)

OSTI ID:6217879

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

Glucose was converted to ethanol by calcium-alginate-entrapped Saccharomyces cerevisiae NRRL Y-2034 cells that were 24, 48, 72, and 96 h 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 ethanol yields (5.11 g/10 g of glucose) over extended time periods. The best static fermentation (with 24-h-old cells) converted 100% of the glucose to ethanol for about 12 days, whereas the best continuous fermentation (with 96-h-old cells) converted 100% of the glucose for a remarkable period of about 3 months.

• Research Organization: Northern Regional Research Center, Agricultural Research Service, US Dept of Agriculture, Peoria, IL 61604
• OSTI ID: 6217879
• 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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59 BASIC BIOLOGICAL SCIENCES
AGE DEPENDENCE
ALCOHOLS
ALDEHYDES
BATCH CULTURE
BIOCONVERSION
CARBOHYDRATES
CONTINUOUS CULTURE
EFFICIENCY
ETHANOL
FERMENTATION
FUNGI
GLUCOSE
HEXOSES
HYDROXY COMPOUNDS
IMMOBILIZED CELLS
MICROORGANISMS
MONOSACCHARIDES
ORGANIC COMPOUNDS
PLANTS
PRODUCTION
PRODUCTIVITY
SACCHARIDES
SACCHAROMYCES
SACCHAROMYCES CEREVISIAE
YEASTS