Up-flow attached-bed bioreactor for continuous ethanol fermentation

Journal Article · · Biotechnology Progress; (United States)

OSTI ID:5859238

Chen, Hungchang ^[1]

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1. Development Center for Biotechnology, Taipei (Taiwan)

Ethanol fermentation was carried out in an up-flow attached-bed (UFAB) continuous fermentor using different microorganisms, substrates, and attachment supports. When Saccharomyces fragilis was attached to cellulose acetate to ferment deproteinized and concentrated acid whey, ethanol productivity as high as 6.9 g/(L{center dot}h), 10 times that of a batch reactor, was obtained in a continuous UFAB bioreactor. When Zymomonas mobilis was attached to vermiculite in a continuous UFAB bioreactor to ferment a 10% glucose feed, ethanol productivity as high as 105.7 g/(L{center dot}h) was achieved with a dilution rate of 3.6 h{sup {minus}1} and ethanol concentration of 29.0 g/L.

• OSTI ID: 5859238
• Journal Information: Biotechnology Progress; (United States), Vol. 7:4; ISSN 8756-7938
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
ETHANOL
BIOSYNTHESIS
BIOREACTORS
BIOTECHNOLOGY
CONTINUOUS CULTURE
FERMENTATION
GLUCOSE
PRODUCTIVITY
SACCHAROMYCES
WHEY
ALCOHOLS
ALDEHYDES
BIOCONVERSION
CARBOHYDRATES
EUMYCOTA
FOOD
FUNGI
HEXOSES
HYDROXY COMPOUNDS
INDUSTRIAL WASTES
MICROORGANISMS
MILK PRODUCTS
MONOSACCHARIDES
ORGANIC COMPOUNDS
PLANTS
SACCHARIDES
SYNTHESIS
WASTES
YEASTS
090900* - Biomass Fuels- Processing- (1990-)